chore(build): increase timeout of the 5 most flaky tests

Closes #5410

modules/angular2/test/platform/browser/debug/debug_element_view_listener_spec.ts

@@ -68,7 +68,7 @@ export function main() {
 
                  async.done();
                });
-         }));
+         }), 10000);
     }
   });
 }

modules/angular2/test/web_workers/shared/message_bus_spec.ts

@@ -147,6 +147,6 @@ export function main() {
            expect(wasCalled).toBeTruthy();
            async.done();
          });
-       }), 500);
+       }), 10000);
   });
 }

modules/angular2_material/test/button_spec.ts

@@ -45,7 +45,7 @@ export function main() {
 
              async.done();
            });
-         }), 1000);
+         }), 10000);
 
       it('should disable the button', inject([AsyncTestCompleter], (async) => {
            builder.createAsync(TestApp).then(fixture => {
@@ -68,7 +68,7 @@ export function main() {
              expect(testAppComponent.clickCount).toBe(0);
              async.done();
            });
-         }), 1000);
+         }), 10000);
     });
 
     describe('a[md-button]', () => {
@@ -103,7 +103,7 @@ export function main() {
                 // No clear way to test this; see https://github.com/angular/angular/issues/3782
                 async.done();
               }));
-         }), 1000);
+         }), 10000);
     });
   });
 }