First-cut at fixing unhandled Tap event returns in Blink.

Source/core/page/EventHandler.h

 /*
  * Copyright (C) 2006, 2007, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 374 matching lines @@
 
     double m_maxMouseMovedDuration;
     PlatformEvent::Type m_baseEventType;
     bool m_didStartDrag;
 
     bool m_longTapShouldInvokeContextMenu;
 
     Timer<EventHandler> m_activeIntervalTimer;
     double m_lastShowPressTimestamp;
     RefPtr<Element> m_lastDeferredTapElement;
+
+    // Fixes the return value of a Tap event to unhandled in cases where the
+    // fake click causes the selection to change and would normally return
+    // true to indicate the Tap was handled.
+    bool m_fixTapGestureReturnValue;
 };
 
 } // namespace WebCore
 
 #endif // EventHandler_h