refactor(Location): out of router and into platform/common

closes https://github.com/angular/angular/issues/4943

BREAKING CHANGE:

`Location` and other related providers have been moved out of `router` and into `platform/common`. `BrowserPlatformLocation` is not meant to be used directly however advanced configurations may use it via the following import change.

Before:

```
import {
  PlatformLocation,
  Location,
  LocationStrategy,
  HashLocationStrategy,
  PathLocationStrategy,
  APP_BASE_HREF}
from 'angular2/router';

import {BrowserPlatformLocation} from 'angular2/src/router/location/browser_platform_location';
```

After:

```
import {
  PlatformLocation,
  Location,
  LocationStrategy,
  HashLocationStrategy,
  PathLocationStrategy,
  APP_BASE_HREF}
from 'angular2/platform/common';

import {BrowserPlatformLocation} from 'angular2/src/platform/browser/location/browser_platform_location';
```

Closes #7962

modules/angular2/examples/router/ts/can_activate/can_activate_example.ts

@@ -1,12 +1,7 @@
 import {provide, Component} from 'angular2/core';
 import {bootstrap} from 'angular2/platform/browser';
-import {
+import {CanActivate, RouteConfig, ComponentInstruction, ROUTER_DIRECTIVES} from 'angular2/router';
-  CanActivate,
+import {APP_BASE_HREF} from 'angular2/platform/common';
-  RouteConfig,
-  ComponentInstruction,
-  APP_BASE_HREF,
-  ROUTER_DIRECTIVES
-} from 'angular2/router';
 
 function checkIfWeHavePermission(instruction: ComponentInstruction) {
   return instruction.params['id'] == '1';

modules/angular2/examples/router/ts/can_deactivate/can_deactivate_example.ts

@@ -5,9 +5,9 @@ import {
   RouteConfig,
   RouteParams,
   ComponentInstruction,
-  ROUTER_DIRECTIVES,
+  ROUTER_DIRECTIVES
-  APP_BASE_HREF
 } from 'angular2/router';
+import {APP_BASE_HREF} from 'angular2/platform/common';
 
 // #docregion routerCanDeactivate
 @Component({

modules/angular2/examples/router/ts/on_activate/on_activate_example.ts

@@ -1,12 +1,7 @@
 import {Component, provide} from 'angular2/core';
 import {bootstrap} from 'angular2/platform/browser';
-import {
+import {OnActivate, ComponentInstruction, RouteConfig, ROUTER_DIRECTIVES} from 'angular2/router';
-  OnActivate,
+import {APP_BASE_HREF} from 'angular2/platform/common';
-  ComponentInstruction,
-  RouteConfig,
-  ROUTER_DIRECTIVES,
-  APP_BASE_HREF
-} from 'angular2/router';
 
 // #docregion routerOnActivate
 @Component({template: `Child`})

modules/angular2/examples/router/ts/on_deactivate/on_deactivate_example.ts

@@ -1,12 +1,7 @@
 import {Component, Injectable, provide} from 'angular2/core';
 import {bootstrap} from 'angular2/platform/browser';
-import {
+import {OnDeactivate, ComponentInstruction, RouteConfig, ROUTER_DIRECTIVES} from 'angular2/router';
-  OnDeactivate,
+import {APP_BASE_HREF} from 'angular2/platform/common';
-  ComponentInstruction,
-  RouteConfig,
-  ROUTER_DIRECTIVES,
-  APP_BASE_HREF
-} from 'angular2/router';
 
 
 @Injectable()

modules/angular2/examples/router/ts/reuse/reuse_example.ts

@@ -5,11 +5,11 @@ import {
   RouteConfig,
   ComponentInstruction,
   ROUTER_DIRECTIVES,
-  APP_BASE_HREF,
   CanReuse,
   RouteParams,
   OnReuse
 } from 'angular2/router';
+import {APP_BASE_HREF} from 'angular2/platform/common';
 
 
 // #docregion reuseCmp

modules/angular2/platform/common.ts

@@ -0,0 +1,5 @@
+/**
+ * Platform agnostic services.
+ * Can be used both in the browser and on the server.
+ */
+export * from 'angular2/src/platform/location';

modules/angular2/platform/common_dom.ts

@@ -1,5 +1,6 @@
 /**
- * This is a set of classes and objects that can be used both in the browser and on the server.
+ * This is a set of DOM related classes and objects that can be used both in the browser and on the
+ * server.
  */
 export {DOM, setRootDomAdapter, DomAdapter} from 'angular2/src/platform/dom/dom_adapter';
 export {DomRenderer} from 'angular2/src/platform/dom/dom_renderer';

modules/angular2/platform/testing/browser_static.ts

@@ -14,7 +14,7 @@ import {MockAnimationBuilder} from 'angular2/src/mock/animation_builder_mock';
 import {MockDirectiveResolver} from 'angular2/src/mock/directive_resolver_mock';
 import {MockViewResolver} from 'angular2/src/mock/view_resolver_mock';
 import {MockLocationStrategy} from 'angular2/src/mock/mock_location_strategy';
-import {LocationStrategy} from 'angular2/src/router/location/location_strategy';
+import {LocationStrategy} from 'angular2/platform/common';
 import {MockNgZone} from 'angular2/src/mock/ng_zone_mock';
 
 import {XHRImpl} from "angular2/src/platform/browser/xhr_impl";

modules/angular2/platform/testing/server.ts

@@ -16,7 +16,6 @@ import {MockAnimationBuilder} from 'angular2/src/mock/animation_builder_mock';
 import {MockDirectiveResolver} from 'angular2/src/mock/directive_resolver_mock';
 import {MockViewResolver} from 'angular2/src/mock/view_resolver_mock';
 import {MockLocationStrategy} from 'angular2/src/mock/mock_location_strategy';
-import {LocationStrategy} from 'angular2/src/router/location/location_strategy';
 import {MockNgZone} from 'angular2/src/mock/ng_zone_mock';
 
 import {TestComponentBuilder} from 'angular2/src/testing/test_component_builder';
@@ -36,6 +35,7 @@ import {
   ELEMENT_PROBE_PROVIDERS
 } from 'angular2/platform/common_dom';
 import {DomEventsPlugin} from 'angular2/src/platform/dom/events/dom_events';
+import {LocationStrategy} from 'angular2/platform/common';
 
 import {CONST_EXPR} from 'angular2/src/facade/lang';
 

modules/angular2/router.ts

@@ -8,12 +8,7 @@ export {Router} from './src/router/router';
 export {RouterOutlet} from './src/router/directives/router_outlet';
 export {RouterLink} from './src/router/directives/router_link';
 export {RouteParams, RouteData} from './src/router/instruction';
-export {PlatformLocation} from './src/router/location/platform_location';
 export {RouteRegistry, ROUTER_PRIMARY_COMPONENT} from './src/router/route_registry';
-export {LocationStrategy, APP_BASE_HREF} from './src/router/location/location_strategy';
-export {HashLocationStrategy} from './src/router/location/hash_location_strategy';
-export {PathLocationStrategy} from './src/router/location/path_location_strategy';
-export {Location} from './src/router/location/location';
 export * from './src/router/route_config/route_config_decorator';
 export * from './src/router/route_definition';
 export {OnActivate, OnDeactivate, OnReuse, CanDeactivate, CanReuse} from './src/router/interfaces';

modules/angular2/src/mock/location_mock.ts

@@ -1,7 +1,7 @@
 import {Injectable} from 'angular2/src/core/di';
 import {EventEmitter, ObservableWrapper} from 'angular2/src/facade/async';
 import {ListWrapper} from 'angular2/src/facade/collection';
-import {Location} from 'angular2/src/router/location/location';
+import {Location} from 'angular2/platform/common';
 
 /**
  * A spy for {@link Location} that allows tests to fire simulated location events.

modules/angular2/src/mock/mock_location_strategy.ts

@@ -1,6 +1,6 @@
 import {Injectable} from 'angular2/src/core/di';
 import {EventEmitter, ObservableWrapper} from 'angular2/src/facade/async';
-import {LocationStrategy} from 'angular2/src/router/location/location_strategy';
+import {LocationStrategy} from 'angular2/platform/common';
 
 
 /**

modules/angular2/src/platform/browser/location/browser_platform_location.ts

@@ -1,7 +1,6 @@
-import {Injectable} from 'angular2/core';
+import {Injectable} from 'angular2/src/core/di/decorators';
+import {UrlChangeListener, PlatformLocation} from './platform_location';
 import {History, Location} from 'angular2/src/facade/browser';
-import {UrlChangeListener} from './platform_location';
-import {PlatformLocation} from './platform_location';
 import {DOM} from 'angular2/src/platform/dom/dom_adapter';
 
 /**

modules/angular2/src/platform/browser/location/hash_location_strategy.ts

@@ -1,13 +1,8 @@
 import {Injectable, Inject, Optional} from 'angular2/core';
-import {
+import {LocationStrategy, APP_BASE_HREF} from './location_strategy';
-  LocationStrategy,
+import {Location} from './location';
-  joinWithSlash,
+import {UrlChangeListener, PlatformLocation} from './platform_location';
-  APP_BASE_HREF,
-  normalizeQueryParams
-} from './location_strategy';
-import {UrlChangeListener} from './platform_location';
 import {isPresent} from 'angular2/src/facade/lang';
-import {PlatformLocation} from './platform_location';
 
 /**
  * `HashLocationStrategy` is a {@link LocationStrategy} used to configure the
@@ -23,12 +18,14 @@ import {PlatformLocation} from './platform_location';
  * ```
  * import {Component, provide} from 'angular2/core';
  * import {
- *   ROUTER_DIRECTIVES,
- *   ROUTER_PROVIDERS,
- *   RouteConfig,
  *   Location,
  *   LocationStrategy,
  *   HashLocationStrategy
+ * } from 'angular2/platform/common';
+ * import {
+ *   ROUTER_DIRECTIVES,
+ *   ROUTER_PROVIDERS,
+ *   RouteConfig
  * } from 'angular2/router';
  *
  * @Component({directives: [ROUTER_DIRECTIVES]})
@@ -78,12 +75,12 @@ export class HashLocationStrategy extends LocationStrategy {
   }
 
   prepareExternalUrl(internal: string): string {
-    var url = joinWithSlash(this._baseHref, internal);
+    var url = Location.joinWithSlash(this._baseHref, internal);
     return url.length > 0 ? ('#' + url) : url;
   }
 
   pushState(state: any, title: string, path: string, queryParams: string) {
-    var url = this.prepareExternalUrl(path + normalizeQueryParams(queryParams));
+    var url = this.prepareExternalUrl(path + Location.normalizeQueryParams(queryParams));
     if (url.length == 0) {
       url = this._platformLocation.pathname;
     }
@@ -91,7 +88,7 @@ export class HashLocationStrategy extends LocationStrategy {
   }
 
   replaceState(state: any, title: string, path: string, queryParams: string) {
-    var url = this.prepareExternalUrl(path + normalizeQueryParams(queryParams));
+    var url = this.prepareExternalUrl(path + Location.normalizeQueryParams(queryParams));
     if (url.length == 0) {
       url = this._platformLocation.pathname;
     }

modules/angular2/src/platform/browser/location/location.ts

@@ -1,6 +1,6 @@
-import {LocationStrategy} from './location_strategy';
 import {EventEmitter, ObservableWrapper} from 'angular2/src/facade/async';
 import {Injectable, Inject} from 'angular2/core';
+import {LocationStrategy} from './location_strategy';
 
 /**
  * `Location` is a service that applications can use to interact with a browser's URL.
@@ -22,11 +22,11 @@ import {Injectable, Inject} from 'angular2/core';
  *
  * ```
  * import {Component} from 'angular2/core';
+ * import {Location} from 'angular2/platform/common';
  * import {
  *   ROUTER_DIRECTIVES,
  *   ROUTER_PROVIDERS,
- *   RouteConfig,
+ *   RouteConfig
- *   Location
  * } from 'angular2/router';
  *
  * @Component({directives: [ROUTER_DIRECTIVES]})
@@ -51,7 +51,7 @@ export class Location {
 
   constructor(public platformStrategy: LocationStrategy) {
     var browserBaseHref = this.platformStrategy.getBaseHref();
-    this._baseHref = stripTrailingSlash(stripIndexHtml(browserBaseHref));
+    this._baseHref = Location.stripTrailingSlash(_stripIndexHtml(browserBaseHref));
     this.platformStrategy.onPopState((ev) => {
       ObservableWrapper.callEmit(this._subject, {'url': this.path(), 'pop': true, 'type': ev.type});
     });
@@ -67,7 +67,7 @@ export class Location {
    * trailing slashes
    */
   normalize(url: string): string {
-    return stripTrailingSlash(_stripBaseHref(this._baseHref, stripIndexHtml(url)));
+    return Location.stripTrailingSlash(_stripBaseHref(this._baseHref, _stripIndexHtml(url)));
   }
 
   /**
@@ -117,6 +117,50 @@ export class Location {
             onReturn: () => void = null): Object {
     return ObservableWrapper.subscribe(this._subject, onNext, onThrow, onReturn);
   }
+
+  /**
+   * Given a string of url parameters, prepend with '?' if needed, otherwise return parameters as
+   * is.
+   */
+  public static normalizeQueryParams(params: string): string {
+    return (params.length > 0 && params.substring(0, 1) != '?') ? ('?' + params) : params;
+  }
+
+  /**
+   * Given 2 parts of a url, join them with a slash if needed.
+   */
+  public static joinWithSlash(start: string, end: string): string {
+    if (start.length == 0) {
+      return end;
+    }
+    if (end.length == 0) {
+      return start;
+    }
+    var slashes = 0;
+    if (start.endsWith('/')) {
+      slashes++;
+    }
+    if (end.startsWith('/')) {
+      slashes++;
+    }
+    if (slashes == 2) {
+      return start + end.substring(1);
+    }
+    if (slashes == 1) {
+      return start + end;
+    }
+    return start + '/' + end;
+  }
+
+  /**
+   * If url has a trailing slash, remove it, otherwise return url as is.
+   */
+  public static stripTrailingSlash(url: string): string {
+    if (/\/$/g.test(url)) {
+      url = url.substring(0, url.length - 1);
+    }
+    return url;
+  }
 }
 
 function _stripBaseHref(baseHref: string, url: string): string {
@@ -126,17 +170,10 @@ function _stripBaseHref(baseHref: string, url: string): string {
   return url;
 }
 
-function stripIndexHtml(url: string): string {
+function _stripIndexHtml(url: string): string {
   if (/\/index.html$/g.test(url)) {
     // '/index.html'.length == 11
     return url.substring(0, url.length - 11);
   }
   return url;
 }
-
-function stripTrailingSlash(url: string): string {
-  if (/\/$/g.test(url)) {
-    url = url.substring(0, url.length - 1);
-  }
-  return url;
-}

modules/angular2/src/platform/browser/location/location_strategy.ts

@@ -43,6 +43,7 @@ export abstract class LocationStrategy {
  * ```
  * import {Component} from 'angular2/core';
  * import {ROUTER_DIRECTIVES, ROUTER_PROVIDERS, RouteConfig} from 'angular2/router';
+ * import {APP_BASE_HREF} from 'angular2/platform/common';
  *
  * @Component({directives: [ROUTER_DIRECTIVES]})
  * @RouteConfig([
@@ -59,30 +60,3 @@ export abstract class LocationStrategy {
  * ```
  */
 export const APP_BASE_HREF: OpaqueToken = CONST_EXPR(new OpaqueToken('appBaseHref'));
-
-export function normalizeQueryParams(params: string): string {
-  return (params.length > 0 && params.substring(0, 1) != '?') ? ('?' + params) : params;
-}
-
-export function joinWithSlash(start: string, end: string): string {
-  if (start.length == 0) {
-    return end;
-  }
-  if (end.length == 0) {
-    return start;
-  }
-  var slashes = 0;
-  if (start.endsWith('/')) {
-    slashes++;
-  }
-  if (end.startsWith('/')) {
-    slashes++;
-  }
-  if (slashes == 2) {
-    return start + end.substring(1);
-  }
-  if (slashes == 1) {
-    return start + end;
-  }
-  return start + '/' + end;
-}

modules/angular2/src/platform/browser/location/path_location_strategy.ts

@@ -1,13 +1,9 @@
 import {Injectable, Inject, Optional} from 'angular2/core';
 import {isBlank} from 'angular2/src/facade/lang';
 import {BaseException} from 'angular2/src/facade/exceptions';
-import {
-  LocationStrategy,
-  APP_BASE_HREF,
-  normalizeQueryParams,
-  joinWithSlash
-} from './location_strategy';
 import {PlatformLocation, UrlChangeListener} from './platform_location';
+import {LocationStrategy, APP_BASE_HREF} from './location_strategy';
+import {Location} from './location';
 
 /**
  * `PathLocationStrategy` is a {@link LocationStrategy} used to configure the
@@ -30,12 +26,15 @@ import {PlatformLocation, UrlChangeListener} from './platform_location';
  *
  * ```
  * import {Component, provide} from 'angular2/core';
+ * import {bootstrap} from 'angular2/platform/browser';
  * import {
+ *   Location,
  *   APP_BASE_HREF
+ * } from 'angular2/platform/common';
+ * import {
  *   ROUTER_DIRECTIVES,
  *   ROUTER_PROVIDERS,
- *   RouteConfig,
+ *   RouteConfig
- *   Location
  * } from 'angular2/router';
  *
  * @Component({directives: [ROUTER_DIRECTIVES]})
@@ -81,19 +80,22 @@ export class PathLocationStrategy extends LocationStrategy {
 
   getBaseHref(): string { return this._baseHref; }
 
-  prepareExternalUrl(internal: string): string { return joinWithSlash(this._baseHref, internal); }
+  prepareExternalUrl(internal: string): string {
+    return Location.joinWithSlash(this._baseHref, internal);
+  }
 
   path(): string {
-    return this._platformLocation.pathname + normalizeQueryParams(this._platformLocation.search);
+    return this._platformLocation.pathname +
+           Location.normalizeQueryParams(this._platformLocation.search);
   }
 
   pushState(state: any, title: string, url: string, queryParams: string) {
-    var externalUrl = this.prepareExternalUrl(url + normalizeQueryParams(queryParams));
+    var externalUrl = this.prepareExternalUrl(url + Location.normalizeQueryParams(queryParams));
     this._platformLocation.pushState(state, title, externalUrl);
   }
 
   replaceState(state: any, title: string, url: string, queryParams: string) {
-    var externalUrl = this.prepareExternalUrl(url + normalizeQueryParams(queryParams));
+    var externalUrl = this.prepareExternalUrl(url + Location.normalizeQueryParams(queryParams));
     this._platformLocation.replaceState(state, title, externalUrl);
   }
 

modules/angular2/src/platform/location.ts

@@ -0,0 +1,5 @@
+export * from './browser/location/platform_location';
+export * from './browser/location/location_strategy';
+export * from './browser/location/hash_location_strategy';
+export * from './browser/location/path_location_strategy';
+export * from './browser/location/location';

modules/angular2/src/platform/worker_render_common.ts

@@ -36,7 +36,6 @@ import {BrowserDomAdapter} from './browser/browser_adapter';
 import {wtfInit} from 'angular2/src/core/profile/wtf_init';
 import {MessageBasedRenderer} from 'angular2/src/web_workers/ui/renderer';
 import {MessageBasedXHRImpl} from 'angular2/src/web_workers/ui/xhr_impl';
-import {BrowserPlatformLocation} from 'angular2/src/router/location/browser_platform_location';
 import {
   ServiceMessageBrokerFactory,
   ServiceMessageBrokerFactory_
@@ -45,6 +44,9 @@ import {
   ClientMessageBrokerFactory,
   ClientMessageBrokerFactory_
 } from 'angular2/src/web_workers/shared/client_message_broker';
+import {
+  BrowserPlatformLocation
+} from 'angular2/src/platform/browser/location/browser_platform_location';
 import {Serializer} from 'angular2/src/web_workers/shared/serializer';
 import {ON_WEB_WORKER} from 'angular2/src/web_workers/shared/api';
 import {RenderStore} from 'angular2/src/web_workers/shared/render_store';

modules/angular2/src/router/directives/router_link.ts

@@ -1,8 +1,8 @@
 import {Directive} from 'angular2/core';
+import {Location} from 'angular2/platform/common';
 import {isString} from 'angular2/src/facade/lang';
 
 import {Router} from '../router';
-import {Location} from '../location/location';
 import {Instruction} from '../instruction';
 
 /**

modules/angular2/src/router/router.ts

@@ -2,6 +2,7 @@ import {PromiseWrapper, EventEmitter, ObservableWrapper} from 'angular2/src/faca
 import {Map, StringMapWrapper, MapWrapper, ListWrapper} from 'angular2/src/facade/collection';
 import {isBlank, isString, isPresent, Type, isArray} from 'angular2/src/facade/lang';
 import {BaseException, WrappedException} from 'angular2/src/facade/exceptions';
+import {Location} from 'angular2/platform/common';
 import {Inject, Injectable} from 'angular2/core';
 
 import {RouteRegistry, ROUTER_PRIMARY_COMPONENT} from './route_registry';
@@ -10,7 +11,6 @@ import {
   Instruction,
 } from './instruction';
 import {RouterOutlet} from './directives/router_outlet';
-import {Location} from './location/location';
 import {getCanActivateHook} from './lifecycle/route_lifecycle_reflector';
 import {RouteDefinition} from './route_config/route_config_impl';
 

modules/angular2/src/router/router_providers.ts

@@ -1,8 +1,10 @@
 import {ROUTER_PROVIDERS_COMMON} from './router_providers_common';
 import {Provider} from 'angular2/core';
+import {
+  BrowserPlatformLocation
+} from 'angular2/src/platform/browser/location/browser_platform_location';
+import {PlatformLocation} from 'angular2/platform/common';
 import {CONST_EXPR} from 'angular2/src/facade/lang';
-import {BrowserPlatformLocation} from './location/browser_platform_location';
-import {PlatformLocation} from './location/platform_location';
 
 /**
  * A list of {@link Provider}s. To use the router, you must add this to your application.

modules/angular2/src/router/router_providers_common.ts

@@ -1,8 +1,6 @@
-import {LocationStrategy} from 'angular2/src/router/location/location_strategy';
+import {LocationStrategy, PathLocationStrategy, Location} from 'angular2/platform/common';
-import {PathLocationStrategy} from 'angular2/src/router/location/path_location_strategy';
 import {Router, RootRouter} from 'angular2/src/router/router';
 import {RouteRegistry, ROUTER_PRIMARY_COMPONENT} from 'angular2/src/router/route_registry';
-import {Location} from 'angular2/src/router/location/location';
 import {CONST_EXPR, Type} from 'angular2/src/facade/lang';
 import {ApplicationRef, OpaqueToken, Provider} from 'angular2/core';
 import {BaseException} from 'angular2/src/facade/exceptions';

modules/angular2/src/web_workers/ui/platform_location.ts

@@ -1,4 +1,7 @@
-import {BrowserPlatformLocation} from 'angular2/src/router/location/browser_platform_location';
+import {
+  BrowserPlatformLocation
+} from 'angular2/src/platform/browser/location/browser_platform_location';
+import {UrlChangeListener} from 'angular2/platform/common';
 import {Injectable} from 'angular2/src/core/di';
 import {ROUTER_CHANNEL} from 'angular2/src/web_workers/shared/messaging_api';
 import {
@@ -10,7 +13,6 @@ import {bind} from './bind';
 import {LocationType} from 'angular2/src/web_workers/shared/serialized_types';
 import {MessageBus} from 'angular2/src/web_workers/shared/message_bus';
 import {EventEmitter, ObservableWrapper, PromiseWrapper} from 'angular2/src/facade/async';
-import {UrlChangeListener} from 'angular2/src/router/location/platform_location';
 
 @Injectable()
 export class MessageBasedPlatformLocation {

modules/angular2/src/web_workers/ui/router_providers.ts

@@ -1,6 +1,8 @@
 import {MessageBasedPlatformLocation} from './platform_location';
 import {CONST_EXPR} from 'angular2/src/facade/lang';
-import {BrowserPlatformLocation} from 'angular2/src/router/location/browser_platform_location';
+import {
+  BrowserPlatformLocation
+} from 'angular2/src/platform/browser/location/browser_platform_location';
 import {APP_INITIALIZER, Provider, Injector, NgZone} from 'angular2/core';
 
 export const WORKER_RENDER_ROUTER = CONST_EXPR([

modules/angular2/src/web_workers/worker/platform_location.ts

@@ -1,15 +1,11 @@
 import {Injectable} from 'angular2/src/core/di';
-import {
-  PlatformLocation,
-  UrlChangeEvent,
-  UrlChangeListener
-} from 'angular2/src/router/location/platform_location';
 import {
   FnArg,
   UiArguments,
   ClientMessageBroker,
   ClientMessageBrokerFactory
 } from 'angular2/src/web_workers/shared/client_message_broker';
+import {PlatformLocation, UrlChangeEvent, UrlChangeListener} from 'angular2/platform/common';
 import {ROUTER_CHANNEL} from 'angular2/src/web_workers/shared/messaging_api';
 import {LocationType} from 'angular2/src/web_workers/shared/serialized_types';
 import {PromiseWrapper, EventEmitter, ObservableWrapper} from 'angular2/src/facade/async';

modules/angular2/src/web_workers/worker/router_providers.ts

@@ -1,5 +1,5 @@
 import {ApplicationRef, Provider, NgZone, APP_INITIALIZER} from 'angular2/core';
-import {PlatformLocation} from 'angular2/src/router/location/platform_location';
+import {PlatformLocation} from 'angular2/platform/common';
 import {WebWorkerPlatformLocation} from './platform_location';
 import {ROUTER_PROVIDERS_COMMON} from 'angular2/src/router/router_providers_common';
 

modules/angular2/test/platform/browser/bootstrap_spec.ts

@@ -13,11 +13,10 @@ import {
   xit
 } from 'angular2/testing_internal';
 import {IS_DART, isPresent, stringify} from 'angular2/src/facade/lang';
-import {bootstrap} from 'angular2/platform/browser';
+import {bootstrap, BROWSER_PROVIDERS, BROWSER_APP_PROVIDERS} from 'angular2/platform/browser';
 import {ApplicationRef} from 'angular2/src/core/application_ref';
 import {Console} from 'angular2/src/core/console';
 import {Component, Directive, OnDestroy, platform} from 'angular2/core';
-import {BROWSER_PROVIDERS, BROWSER_APP_PROVIDERS} from 'angular2/platform/browser';
 import {DOM} from 'angular2/src/platform/dom/dom_adapter';
 import {DOCUMENT} from 'angular2/src/platform/dom/dom_tokens';
 import {PromiseWrapper, TimerWrapper} from 'angular2/src/facade/async';

modules/angular2/test/public_api_spec.ts

@@ -311,6 +311,17 @@ var NG_PLATFORM_BROWSER = [
   'inspectNativeElement'
 ];
 
+var NG_PLATFORM_COMMON = [
+  'APP_BASE_HREF',
+  'HashLocationStrategy',
+  'Location',
+  'LocationStrategy',
+  'PathLocationStrategy',
+  'PlatformLocation',
+  'UrlChangeEvent:dart',
+  'UrlChangeListener:dart'
+];
+
 var NG_UPGRADE = [
   'UpgradeAdapter',
   'UpgradeAdapterRef',
@@ -322,6 +333,7 @@ var NG_API = {
   ngCore: NG_CORE,
   ngInstrumentation: NG_INSTRUMENTATION,
   ngPlatformBrowser: NG_PLATFORM_BROWSER,
+  ngPlatformCommon: NG_PLATFORM_COMMON,
   ngUpgrade: NG_UPGRADE
 };
 
@@ -336,8 +348,15 @@ export function main() {
    */
 
   describe('public API', () => {
-    var barrelList =
+    var barrelList = [
-        ['ngCommon', 'ngCompiler', 'ngCore', 'ngInstrumentation', 'ngPlatformBrowser', 'ngUpgrade'];
+      'ngCommon',
+      'ngCompiler',
+      'ngCore',
+      'ngInstrumentation',
+      'ngPlatformBrowser',
+      'ngPlatformCommon',
+      'ngUpgrade'
+    ];
 
     if (IS_DART) {
       barrelList = barrelList.filter(b => b !== 'ngUpgrade');

modules/angular2/test/router/directives/router_link_spec.ts

@@ -18,9 +18,9 @@ import {SpyRouter, SpyLocation} from '../spies';
 
 import {provide, Component} from 'angular2/core';
 import {By} from 'angular2/platform/common_dom';
+import {Location} from 'angular2/platform/common';
 
 import {
-  Location,
   Router,
   RouteRegistry,
   RouterLink,

modules/angular2/test/router/integration/bootstrap_spec.ts

@@ -15,6 +15,7 @@ import {
 } from 'angular2/testing_internal';
 
 import {bootstrap} from 'angular2/platform/browser';
+import {APP_BASE_HREF, LocationStrategy} from 'angular2/platform/common';
 import {Component, Directive} from 'angular2/src/core/metadata';
 import {DOM} from 'angular2/src/platform/dom/dom_adapter';
 import {Console} from 'angular2/src/core/console';
@@ -33,9 +34,7 @@ import {
   ROUTER_PRIMARY_COMPONENT,
   RouteParams,
   Router,
-  APP_BASE_HREF,
+  ROUTER_DIRECTIVES
-  ROUTER_DIRECTIVES,
-  LocationStrategy
 } from 'angular2/router';
 
 import {MockLocationStrategy} from 'angular2/src/mock/mock_location_strategy';

modules/angular2/test/router/integration/impl/async_route_spec_impl.ts

@@ -12,12 +12,12 @@ import {
   xit,
 } from 'angular2/testing_internal';
 
-
 import {By} from 'angular2/platform/common_dom';
+import {Location} from 'angular2/platform/common';
 
 import {specs, compile, TEST_ROUTER_PROVIDERS, clickOnElement, getHref} from '../util';
 
-import {Router, AsyncRoute, Route, Location} from 'angular2/router';
+import {Router, AsyncRoute, Route} from 'angular2/router';
 
 import {
   HelloCmp,

modules/angular2/test/router/integration/impl/aux_route_spec_impl.ts

@@ -16,9 +16,10 @@ import {
 } from 'angular2/testing_internal';
 
 import {By} from 'angular2/platform/common_dom';
+import {Location} from 'angular2/platform/common';
 import {provide, Component, Injector, Inject} from 'angular2/core';
 
-import {Router, ROUTER_DIRECTIVES, RouteParams, RouteData, Location} from 'angular2/router';
+import {Router, ROUTER_DIRECTIVES, RouteParams, RouteData} from 'angular2/router';
 import {
   RouteConfig,
   Route,

modules/angular2/test/router/integration/impl/sync_route_spec_impl.ts

@@ -15,7 +15,8 @@ import {
 import {specs, compile, TEST_ROUTER_PROVIDERS, clickOnElement, getHref} from '../util';
 
 import {By} from 'angular2/platform/common_dom';
-import {Router, Route, Location} from 'angular2/router';
+import {Location} from 'angular2/platform/common';
+import {Router, Route} from 'angular2/router';
 
 import {
   HelloCmp,

modules/angular2/test/router/integration/navigation_spec.ts

@@ -16,9 +16,10 @@ import {
 } from 'angular2/testing_internal';
 
 import {provide, Component, Injector, Inject} from 'angular2/core';
+import {Location} from 'angular2/platform/common';
 import {PromiseWrapper, TimerWrapper} from 'angular2/src/facade/async';
 
-import {Router, RouterOutlet, RouterLink, RouteParams, RouteData, Location} from 'angular2/router';
+import {Router, RouterOutlet, RouterLink, RouteParams, RouteData} from 'angular2/router';
 import {
   RouteConfig,
   Route,

modules/angular2/test/router/integration/redirect_route_spec.ts

@@ -15,7 +15,7 @@ import {
   xit
 } from 'angular2/testing_internal';
 
-import {Router, RouterOutlet, RouterLink, RouteParams, RouteData, Location} from 'angular2/router';
+import {Router, RouterOutlet, RouterLink, RouteParams, RouteData} from 'angular2/router';
 import {
   RouteConfig,
   Route,
@@ -23,6 +23,7 @@ import {
   AsyncRoute,
   Redirect
 } from 'angular2/src/router/route_config/route_config_decorator';
+import {Location} from 'angular2/platform/common';
 
 import {TEST_ROUTER_PROVIDERS, RootCmp, compile} from './util';
 import {HelloCmp, GoodbyeCmp, RedirectToParentCmp} from './impl/fixture_components';

modules/angular2/test/router/integration/router_link_spec.ts

@@ -18,6 +18,7 @@ import {
 } from 'angular2/testing_internal';
 
 import {By} from 'angular2/platform/common_dom';
+import {Location} from 'angular2/platform/common';
 import {NumberWrapper} from 'angular2/src/facade/lang';
 import {PromiseWrapper} from 'angular2/src/facade/async';
 import {ListWrapper} from 'angular2/src/facade/collection';
@@ -26,7 +27,6 @@ import {provide, Component} from 'angular2/core';
 
 import {SpyLocation} from 'angular2/src/mock/location_mock';
 import {
-  Location,
   Router,
   RouteRegistry,
   RouterLink,

modules/angular2/test/router/integration/util.ts

@@ -21,7 +21,7 @@ import {RootRouter} from 'angular2/src/router/router';
 import {Router, ROUTER_DIRECTIVES, ROUTER_PRIMARY_COMPONENT} from 'angular2/router';
 
 import {SpyLocation} from 'angular2/src/mock/location_mock';
-import {Location} from 'angular2/src/router/location/location';
+import {Location} from 'angular2/platform/common';
 import {RouteRegistry} from 'angular2/src/router/route_registry';
 import {DOM} from 'angular2/src/platform/dom/dom_adapter';
 export {ComponentFixture} from 'angular2/testing_internal';

modules/angular2/test/router/location/hash_location_strategy_spec.ts

@@ -14,9 +14,7 @@ import {
 
 import {Injector, provide} from 'angular2/core';
 
-import {PlatformLocation} from 'angular2/src/router/location/platform_location';
+import {PlatformLocation, APP_BASE_HREF, HashLocationStrategy} from 'angular2/platform/common';
-import {APP_BASE_HREF} from 'angular2/src/router/location/location_strategy';
-import {HashLocationStrategy} from 'angular2/src/router/location/hash_location_strategy';
 import {SpyPlatformLocation} from '../spies';
 
 export function main() {

modules/angular2/test/router/location/location_spec.ts

@@ -15,8 +15,7 @@ import {
 import {Injector, provide} from 'angular2/core';
 import {CONST_EXPR} from 'angular2/src/facade/lang';
 
-import {Location} from 'angular2/src/router/location/location';
+import {Location, LocationStrategy, APP_BASE_HREF} from 'angular2/platform/common';
-import {LocationStrategy, APP_BASE_HREF} from 'angular2/src/router/location/location_strategy';
 import {MockLocationStrategy} from 'angular2/src/mock/mock_location_strategy';
 
 export function main() {

modules/angular2/test/router/location/path_location_strategy_spec.ts

@@ -15,9 +15,12 @@ import {
 import {Injector, provide} from 'angular2/core';
 import {CONST_EXPR} from 'angular2/src/facade/lang';
 
-import {PlatformLocation} from 'angular2/src/router/location/platform_location';
+import {
-import {LocationStrategy, APP_BASE_HREF} from 'angular2/src/router/location/location_strategy';
+  PlatformLocation,
-import {PathLocationStrategy} from 'angular2/src/router/location/path_location_strategy';
+  LocationStrategy,
+  PathLocationStrategy,
+  APP_BASE_HREF
+} from 'angular2/platform/common';
 import {SpyPlatformLocation} from '../spies';
 
 export function main() {

modules/angular2/test/router/route_config/route_config_spec.ts

@@ -12,6 +12,7 @@ import {
 } from 'angular2/testing_internal';
 
 import {bootstrap} from 'angular2/platform/browser';
+import {APP_BASE_HREF, LocationStrategy} from 'angular2/platform/common';
 import {Component, Directive} from 'angular2/src/core/metadata';
 import {DOM} from 'angular2/src/platform/dom/dom_adapter';
 import {Console} from 'angular2/src/core/console';
@@ -19,16 +20,9 @@ import {provide} from 'angular2/core';
 import {DOCUMENT} from 'angular2/src/platform/dom/dom_tokens';
 import {Type, IS_DART} from 'angular2/src/facade/lang';
 
-import {
+import {ROUTER_PROVIDERS, Router, RouteConfig, ROUTER_DIRECTIVES} from 'angular2/router';
-  ROUTER_PROVIDERS,
-  Router,
-  RouteConfig,
-  APP_BASE_HREF,
-  ROUTER_DIRECTIVES
-} from 'angular2/router';
 
 import {ExceptionHandler} from 'angular2/src/facade/exceptions';
-import {LocationStrategy} from 'angular2/src/router/location/location_strategy';
 import {MockLocationStrategy} from 'angular2/src/mock/mock_location_strategy';
 
 class _ArrayLogger {

modules/angular2/test/router/router_spec.ts

@@ -18,7 +18,7 @@ import {ListWrapper} from 'angular2/src/facade/collection';
 
 import {Router, RootRouter} from 'angular2/src/router/router';
 import {SpyLocation} from 'angular2/src/mock/location_mock';
-import {Location} from 'angular2/src/router/location/location';
+import {Location} from 'angular2/platform/common';
 
 import {RouteRegistry, ROUTER_PRIMARY_COMPONENT} from 'angular2/src/router/route_registry';
 import {

modules/angular2/test/router/spies.dart

@@ -1,5 +1,6 @@
 library router.spies;
 
+import 'package:angular2/platform/common.dart' show PlatformLocation, Location;
 import 'package:angular2/router.dart';
 import 'package:angular2/testing_internal.dart';
 

modules/angular2/test/router/spies.ts

@@ -1,4 +1,5 @@
-import {Router, RouterOutlet, Location, PlatformLocation} from 'angular2/router';
+import {Location} from 'angular2/platform/common';
+import {Router, RouterOutlet} from 'angular2/router';
 import {SpyObject, proxy} from 'angular2/testing_internal';
 
 export class SpyRouter extends SpyObject {

modules/angular2/test/symbol_inspector/symbol_inspector.dart

@@ -23,7 +23,8 @@ const LIB_MAP = const {
   'ngCompiler': 'angular2.compiler',
   'ngCore': 'angular2.core',
   'ngInstrumentation': 'angular2.instrumentation',
-  'ngPlatformBrowser': 'angular2.platform.browser'
+  'ngPlatformBrowser': 'angular2.platform.browser',
+  'ngPlatformCommon': 'angular2.platform.common'
 };
 
 // Have this list here to trick dart to force import.

modules/angular2/test/symbol_inspector/symbol_inspector.ts

@@ -4,6 +4,7 @@ import * as ngCompiler from 'angular2/compiler';
 import * as ngCore from 'angular2/core';
 import * as ngInstrumentation from 'angular2/instrumentation';
 import * as ngPlatformBrowser from 'angular2/platform/browser';
+import * as ngPlatformCommon from 'angular2/platform/common';
 import * as ngUpgrade from 'angular2/upgrade';
 
 const LIB_MAP = {
@@ -13,6 +14,7 @@ const LIB_MAP = {
   ngCore,
   ngInstrumentation,
   ngPlatformBrowser,
+  ngPlatformCommon,
   ngUpgrade
 };
 

modules/playground/src/hash_routing/index.ts

@@ -1,13 +1,7 @@
 import {Component, provide} from 'angular2/core';
 import {bootstrap} from 'angular2/platform/browser';
-import {
+import {RouteConfig, Route, ROUTER_PROVIDERS, ROUTER_DIRECTIVES} from 'angular2/router';
-  RouteConfig,
+import {HashLocationStrategy, LocationStrategy} from 'angular2/platform/common';
-  Route,
-  ROUTER_PROVIDERS,
-  ROUTER_DIRECTIVES,
-  HashLocationStrategy,
-  LocationStrategy
-} from 'angular2/router';
 
 
 @Component({selector: 'hello-cmp', template: `hello`})

modules/playground/src/routing/inbox-app.ts

@@ -1,14 +1,7 @@
 import {Component, Injectable} from 'angular2/core';
-import {
+import {RouterLink, RouteConfig, Router, Route, RouterOutlet, RouteParams} from 'angular2/router';
-  RouterLink,
-  RouteConfig,
-  Router,
-  Route,
-  RouterOutlet,
-  Location,
-  RouteParams
-} from 'angular2/router';
 import * as db from './data';
+import {Location} from 'angular2/platform/common';
 import {PromiseWrapper} from 'angular2/src/facade/async';
 import {isPresent, DateWrapper} from 'angular2/src/facade/lang';
 import {PromiseCompleter} from 'angular2/src/facade/promise';

modules/playground/src/routing/index.ts

@@ -1,7 +1,8 @@
 import {InboxApp} from './inbox-app';
 import {provide} from 'angular2/core';
 import {bootstrap} from 'angular2/platform/browser';
-import {ROUTER_PROVIDERS, HashLocationStrategy, LocationStrategy} from 'angular2/router';
+import {HashLocationStrategy, LocationStrategy} from 'angular2/platform/common';
+import {ROUTER_PROVIDERS} from 'angular2/router';
 
 export function main() {
   bootstrap(InboxApp,

modules/playground/src/web_workers/router/background_index.dart

@@ -4,8 +4,8 @@ import "index_common.dart" show App;
 import "dart:isolate";
 import "package:angular2/platform/worker_app.dart";
 import "package:angular2/core.dart";
+import "package:angular2/platform/common.dart" show LocationStrategy, HashLocationStrategy;
 import "package:angular2/src/web_workers/worker/router_providers.dart";
-import "package:angular2/router.dart";
 
 @AngularEntrypoint()
 main(List<String> args, SendPort replyTo) {

modules/playground/src/web_workers/router/background_index.ts

@@ -1,11 +1,11 @@
 import {platform, Provider, NgZone} from "angular2/core";
+import {HashLocationStrategy, LocationStrategy} from 'angular2/platform/common';
 import {
   WORKER_APP_PLATFORM,
   WORKER_APP_APPLICATION,
   WORKER_APP_ROUTER
 } from "angular2/platform/worker_app";
 import {App} from "./index_common";
-import {HashLocationStrategy, LocationStrategy} from "angular2/router";
 
 export function main() {
   let refPromise = platform([WORKER_APP_PLATFORM])

modules/playground/src/web_workers/router/index.ts

@@ -5,7 +5,6 @@ import {
   WORKER_SCRIPT,
   WORKER_RENDER_ROUTER
 } from 'angular2/platform/worker_render';
-import {BrowserPlatformLocation} from "angular2/src/router/location/browser_platform_location";
 import {MessageBasedPlatformLocation} from "angular2/src/web_workers/ui/platform_location";
 
 let ref = platform([WORKER_RENDER_PLATFORM])