MD WebUI: remove timing logs from Polymer-based browser tests

chrome/test/data/webui/polymer_browser_test_base.js

Index: chrome/test/data/webui/polymer_browser_test_base.js
diff --git a/chrome/test/data/webui/polymer_browser_test_base.js b/chrome/test/data/webui/polymer_browser_test_base.js
index 4165afc4b42fb28c96a80d1cfcc5d7da415ab637..150a30b9a0714309c56389029ea94543c6411515 100644
--- a/chrome/test/data/webui/polymer_browser_test_base.js
+++ b/chrome/test/data/webui/polymer_browser_test_base.js
@@ -11,8 +11,7 @@
  * @constructor
  * @extends testing.Test
  */
-function PolymerTest() {
-}
+function PolymerTest() {}
 
 PolymerTest.prototype = {
   __proto__: testing.Test.prototype,
@@ -43,18 +42,6 @@ PolymerTest.prototype = {
     'chrome/test/data/webui/mocha_adapter.js',
   ],
 
-  /** Time when preLoad starts, i.e. before the browsePreload page is loaded. */
-  preloadTime: 0,
-
-  /** Time when test run starts. */
-  runTime: 0,
-
-  /** @override */
-  preLoad: function() {
-    this.preloadTime = window.performance.now();
-    testing.Test.prototype.preLoad.call(this);
-  },
-
   /** @override */
   setUp: function() {
     testing.Test.prototype.setUp.call(this);
@@ -108,25 +95,12 @@ PolymerTest.prototype = {
     });
   },
 
-  /** @override */
-  runTest: function(testBody) {
-    this.runTime = window.performance.now();
-    testing.Test.prototype.runTest.call(this, testBody);
-  },
-
   /** @override */
   tearDown: function() {
     // Note: We do this in tearDown() so that we have a chance to stamp all the
     // dom-if templates, add elements through interaction, etc.
     PolymerTest.testIronIcons(document.body);
 
-    var endTime = window.performance.now();
-    var delta = this.runTime - this.preloadTime;
-    console.log('Page load time: ' + delta.toFixed(0) + " ms");
-    delta = endTime - this.runTime;
-    console.log('Test run time: ' + delta.toFixed(0) + " ms");
-    delta = endTime - this.preloadTime;
-    console.log('Total time: ' + delta.toFixed(0) + " ms");
     testing.Test.prototype.tearDown.call(this);
   }
 };