Fix bump-scroll on Windows.

remoting/webapp/client_session.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.
 
 /**
  * @fileoverview
  * Class handling creation and teardown of a remoting client session.
  *
  * The ClientSession class controls lifetime of the client plugin
  * object and provides the plugin with the functionality it needs to
@@ skipping 621 matching lines @@
  * Toggles between full-screen and windowed mode.
  * @return {void} Nothing.
  * @private
  */
 remoting.ClientSession.prototype.toggleFullScreen_ = function() {
   if (document.webkitIsFullScreen) {
     document.webkitCancelFullScreen();
     this.enableBumpScroll_(false);
   } else {
     document.body.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT);
-    this.enableBumpScroll_(true);
+    // Don't enable bump scrolling immediately because it can result in
+    // onMouseMove firing before the webkitIsFullScreen property can be
+    // read safely (crbug.com/132180).
+    window.setTimeout(this.enableBumpScroll_.bind(this, true), 0);
   }
 };
 
 /**
  * Updates the options menu to reflect the current scale-to-fit and full-screen
  * settings.
  * @return {void} Nothing.
  * @private
  */
 remoting.ClientSession.prototype.onShowOptionsMenu_ = function() {
@@ skipping 114 matching lines @@
       var lateAdjustment = 1 + (now - expected) / timeout;
       if (!that.scroll_(lateAdjustment * dx, lateAdjustment * dy)) {
         that.bumpScrollTimer_ = window.setTimeout(
             function() { repeatScroll(now + timeout); },
             timeout);
       }
     };
     repeatScroll(new Date().getTime());
   }
 };