Move common prerender_loader code into prerender_events_common.js.

chrome/test/data/prerender/prerender_events_common.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Common js for prerender loaders; defines the helper functions that put
 // event handlers on prerenders and track the events for browser tests.
 
 // TODO(gavinp): Put more common loader logic in here.
 
 // Currently only errors with the ordering of Prerender events are caught.
@@ skipping 34 matching lines @@
 }
 
 function AddEventHandlersToLinkElement(link, index) {
   link.addEventListener('webkitprerenderstart',
                         PrerenderStartHandler.bind(null, index), false);
   link.addEventListener('webkitprerenderload',
                         PrerenderLoadHandler.bind(null, index), false);
   link.addEventListener('webkitprerenderstop',
                         PrerenderStopHandler.bind(null, index), false);
 }
+
+function AddPrerender(url, index) {
+  var link = document.createElement('link');
+  link.rel = 'prerender';
+  link.href = url;
+  AddEventHandlersToLinkElement(link, index);
+  document.body.appendChild(link);
+  return link;
+}
+
+function Click() {
+  document.getElementById('toClick').dispatchEvent(new MouseEvent('click', {
+    view: window,
+    bubbles: true,
+    cancelable: true,
+    detail: 1

[mmenke, 2013/12/16 17:48:43]

What does detail do?  Can we just get rid of it?

[davidben, 2013/12/16 18:07:04]

Apparently it's the number of clicks for a mouse event? I dunno, given that
initMouseEvent('click') worked and that doesn't set any of the interesting
fields, I imagine we don't actually need most of these parameters. But mimicking
a real click event seems prudent or something.

+  }));
+}
+
+function ClickTarget() {
+  var eventObject = new MouseEvent('click', {
+    view: window,
+    bubbles: true,
+    cancelable: true,
+    detail: 1
+  });
+  document.getElementById('toClickTarget').dispatchEvent(eventObject);
+}
+
+function ShiftClick() {
+  document.getElementById('toClick').dispatchEvent(new MouseEvent('click', {
+    view: window,
+    bubbles: true,
+    cancelable: true,
+    detail: 1,
+    shiftKey: true
+  }));
+}
+
+function CtrlClick() {
+  document.getElementById('toClick').dispatchEvent(new MouseEvent('click', {
+    view: window,
+    bubbles: true,
+    cancelable: true,
+    detail: 1,
+    ctrlKey: true
+  }));
+}
+
+function CtrlShiftClick() {
+  document.getElementById('toClick').dispatchEvent(new MouseEvent('click', {
+    view: window,
+    bubbles: true,
+    cancelable: true,
+    detail: 1,
+    ctrlKey: true,
+    shiftKey: true
+  }));
+}
+
+function MetaClick() {
+  document.getElementById('toClick').dispatchEvent(new MouseEvent('click', {
+    view: window,
+    bubbles: true,
+    cancelable: true,
+    detail: 1,
+    metaKey: true
+  }));
+}
+
+function MetaShiftClick() {
+  document.getElementById('toClick').dispatchEvent(new MouseEvent('click', {
+    view: window,
+    bubbles: true,
+    cancelable: true,
+    detail: 1,
+    metaKey: true,
+    shiftKey: true
+  }));
+}
+
+function WindowOpen() {
+  window.open(document.getElementById('toClick').href);
+}