Send early ShowPress on TapDown when page isn't scrollable/pinchable.

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 159 matching lines @@
     void focusDocumentView();
 
     void capsLockStateMayHaveChanged(); // Only called by FrameSelection
 
     bool handleTouchEvent(const PlatformTouchEvent&);
 
     bool useHandCursor(Node*, bool isOverLink, bool shiftKey);
 
     void notifyElementActivated();
 
+    // Move this to FrameHost? This acts like it's shared between all frames.
+    bool tapDownTriggeredActive() { return m_tapDownTriggeredActive; };
+
 private:
     static DragState& dragState();
 
     PassRefPtr<Clipboard> createDraggingClipboard() const;
 
     bool updateSelectionForMouseDownDispatchingSelectStart(Node*, const VisibleSelection&, TextGranularity);
     void selectClosestWordFromHitTestResult(const HitTestResult&, AppendTrailingWhitespace);
     void selectClosestMisspellingFromHitTestResult(const HitTestResult&, AppendTrailingWhitespace);
     void selectClosestWordFromMouseEvent(const MouseEventWithHitTestResults&);
     void selectClosestMisspellingFromMouseEvent(const MouseEventWithHitTestResults&);
@@ skipping 196 matching lines @@
     PlatformEvent::Type m_baseEventType;
     bool m_didStartDrag;
 
     bool m_longTapShouldInvokeContextMenu;
     OwnPtr<IntPoint> m_lastSyntheticPinchAnchorCss;
     OwnPtr<IntPoint> m_lastSyntheticPinchAnchorDip;
     OwnPtr<IntPoint> m_lastSyntheticPanLocation;
     float m_syntheticPageScaleFactor;
 
     Timer<EventHandler> m_activeIntervalTimer;
-    double m_lastShowPressTimestamp;
+    double m_lastActiveTimestamp;
     RefPtr<Element> m_lastDeferredTapElement;
+    bool m_tapDownTriggeredActive;
 };
 
 } // namespace WebCore
 
 #endif // EventHandler_h