feat(core): make ngprobe tokens pluggable

modules/@angular/platform-browser/index.ts

@@ -25,7 +25,7 @@ export * from './src/web_workers/shared/message_bus';
 export {WORKER_APP_LOCATION_PROVIDERS} from './src/web_workers/worker/location_providers';
 export {WORKER_UI_LOCATION_PROVIDERS} from './src/web_workers/ui/location_providers';
 
+export {NgProbeToken} from './src/dom/debug/ng_probe';
 export * from './src/worker_render';
 export * from './src/worker_app';
-
 export * from './private_export';

modules/@angular/platform-browser/src/dom/debug/ng_probe.ts

@@ -6,9 +6,10 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
-import {ApplicationRef, DebugNode, NgZone, RootRenderer, getDebugNode, isDevMode} from '@angular/core';
+import {ApplicationRef, DebugNode, NgZone, Optional, RootRenderer, getDebugNode, isDevMode} from '@angular/core';
 
 import {DebugDomRootRenderer} from '../../../core_private';
+import {StringMapWrapper} from '../../facade/collection';
 import {getDOM} from '../dom_adapter';
 import {DomRootRenderer} from '../dom_renderer';
 
@@ -30,24 +31,44 @@ export function inspectNativeElement(element: any /** TODO #9100 */): DebugNode
   return getDebugNode(element);
 }
 
-export function _createConditionalRootRenderer(rootRenderer: any /** TODO #9100 */) {
+/**
+ * @experimental
+ */
+export class NgProbeToken {
+  constructor(private name: string, private token: any) {}
+}
+
+export function _createConditionalRootRenderer(
+    rootRenderer: any /** TODO #9100 */, extraTokens: NgProbeToken[]) {
   if (isDevMode()) {
-    return _createRootRenderer(rootRenderer);
+    return _createRootRenderer(rootRenderer, extraTokens);
   }
   return rootRenderer;
 }
 
-function _createRootRenderer(rootRenderer: any /** TODO #9100 */) {
+function _createRootRenderer(rootRenderer: any /** TODO #9100 */, extraTokens: NgProbeToken[]) {
   getDOM().setGlobalVar(INSPECT_GLOBAL_NAME, inspectNativeElement);
-  getDOM().setGlobalVar(CORE_TOKENS_GLOBAL_NAME, CORE_TOKENS);
+  getDOM().setGlobalVar(
+      CORE_TOKENS_GLOBAL_NAME,
+      StringMapWrapper.merge(CORE_TOKENS, _ngProbeTokensToMap(extraTokens || [])));
   return new DebugDomRootRenderer(rootRenderer);
 }
 
+function _ngProbeTokensToMap(tokens: NgProbeToken[]): {[name: string]: any} {
+  return tokens.reduce((prev: any, t: any) => (prev[t.name] = t.token, prev), {});
+}
+
 /**
  * Providers which support debugging Angular applications (e.g. via `ng.probe`).
  */
-export const ELEMENT_PROBE_PROVIDERS: any[] =
-    [{provide: RootRenderer, useFactory: _createConditionalRootRenderer, deps: [DomRootRenderer]}];
+export const ELEMENT_PROBE_PROVIDERS: any[] = [{
+  provide: RootRenderer,
+  useFactory: _createConditionalRootRenderer,
+  deps: [DomRootRenderer, [NgProbeToken, new Optional()]]
+}];
 
-export const ELEMENT_PROBE_PROVIDERS_PROD_MODE: any[] =
-    [{provide: RootRenderer, useFactory: _createRootRenderer, deps: [DomRootRenderer]}];
+export const ELEMENT_PROBE_PROVIDERS_PROD_MODE: any[] = [{
+  provide: RootRenderer,
+  useFactory: _createRootRenderer,
+  deps: [DomRootRenderer, [NgProbeToken, new Optional()]]
+}];

modules/@angular/router/ng_probe_token.ts

@@ -0,0 +1,16 @@
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+import {NgProbeToken} from '@angular/platform-browser';
+import {Router} from './src/router';
+
+export const ROUTER_NG_PROBE_PROVIDER = {
+  provide: NgProbeToken,
+  multi: true,
+  useValue: new NgProbeToken('router', Router)
+};

tools/public_api_guard/platform-browser/index.d.ts

@@ -126,6 +126,11 @@ export interface MessageBusSource {
     initChannel(channel: string, runInZone: boolean): void;
 }
 
+/** @experimental */
+export declare class NgProbeToken {
+    constructor(name: string, token: any);
+}
+
 /** @experimental */
 export declare const platformBrowser: (extraProviders?: any[]) => PlatformRef;