fix(test): AngularProfiler should check before using modern APIs

modules/angular2/src/core/dom/browser_adapter.dart

@@ -474,6 +474,10 @@ class BrowserDomAdapter extends GenericBrowserDomAdapter {
   cancelAnimationFrame(id) {
     window.cancelAnimationFrame(id);
   }
+
+  num performanceNow() {
+    return window.performance.now();
+  }
 }
 
 var baseElement = null;

modules/angular2/src/core/dom/browser_adapter.ts

@@ -1,5 +1,11 @@
 import {MapWrapper, ListWrapper} from 'angular2/src/core/facade/collection';
-import {isBlank, isPresent, global, setValueOnPath} from 'angular2/src/core/facade/lang';
+import {
+  isBlank,
+  isPresent,
+  global,
+  setValueOnPath,
+  DateWrapper
+} from 'angular2/src/core/facade/lang';
 import {setRootDomAdapter} from './dom_adapter';
 import {GenericBrowserDomAdapter} from './generic_browser_adapter';
 
@@ -322,6 +328,15 @@ export class BrowserDomAdapter extends GenericBrowserDomAdapter {
   setGlobalVar(path: string, value: any) { setValueOnPath(global, path, value); }
   requestAnimationFrame(callback): number { return window.requestAnimationFrame(callback); }
   cancelAnimationFrame(id: number) { window.cancelAnimationFrame(id); }
+  performanceNow(): number {
+    // performance.now() is not available in all browsers, see
+    // http://caniuse.com/#search=performance.now
+    if (isPresent(window.performance) && isPresent(window.performance.now)) {
+      return window.performance.now();
+    } else {
+      return DateWrapper.toMillis(DateWrapper.now());
+    }
+  }
 }
 
 

modules/angular2/src/core/dom/dom_adapter.ts

@@ -138,4 +138,5 @@ export class DomAdapter {
   setGlobalVar(name: string, value: any) { throw _abstract(); }
   requestAnimationFrame(callback): number { throw _abstract(); }
   cancelAnimationFrame(id) { throw _abstract(); }
+  performanceNow(): number { throw _abstract(); }
 }

modules/angular2/src/core/dom/html_adapter.dart

@@ -431,4 +431,8 @@ class Html5LibDomAdapter implements DomAdapter {
   cancelAnimationFrame(id) {
     throw 'not implemented';
   }
+
+  performanceNow() {
+    throw 'not implemented';
+  }
 }

modules/angular2/src/core/dom/parse5_adapter.ts

@@ -9,7 +9,13 @@ var url = require('url');
 
 import {MapWrapper, ListWrapper, StringMapWrapper} from 'angular2/src/core/facade/collection';
 import {DomAdapter, setRootDomAdapter} from './dom_adapter';
-import {isPresent, isBlank, global, setValueOnPath} from 'angular2/src/core/facade/lang';
+import {
+  isPresent,
+  isBlank,
+  global,
+  setValueOnPath,
+  DateWrapper
+} from 'angular2/src/core/facade/lang';
 import {BaseException, WrappedException} from 'angular2/src/core/facade/exceptions';
 import {SelectorMatcher, CssSelector} from 'angular2/src/core/render/dom/compiler/selector';
 
@@ -545,6 +551,7 @@ export class Parse5DomAdapter extends DomAdapter {
   setGlobalVar(path: string, value: any) { setValueOnPath(global, path, value); }
   requestAnimationFrame(callback): number { return setTimeout(callback, 0); }
   cancelAnimationFrame(id: number) { clearTimeout(id); }
+  performanceNow(): number { return DateWrapper.toMillis(DateWrapper.now()); }
 }
 
 // TODO: build a proper list, this one is all the keys of a HTMLInputElement