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 160 matching lines @@
     void focusDocumentView();
 
     void capsLockStateMayHaveChanged(); // Only called by FrameSelection
 
     bool handleTouchEvent(const PlatformTouchEvent&);
 
     bool useHandCursor(Node*, bool isOverLink, bool shiftKey);
 
     void notifyElementActivated();
 
+    LocalFrame* frameForGestureEvent(const PlatformGestureEvent&, IntPoint& adjustedPoint);
+
+    bool hasScrollableAncestor(const Node*) const;
 private:
     static DragState& dragState();
 
     PassRefPtrWillBeRawPtr<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 108 matching lines @@
 
     bool isKeyEventAllowedInFullScreen(FullscreenElementStack*, const PlatformKeyboardEvent&) const;
 
     bool handleGestureShowPress();
 
     bool handleScrollGestureOnResizer(Node*, const PlatformGestureEvent&);
 
     bool passGestureEventToWidget(const PlatformGestureEvent&, Widget*);
     bool passGestureEventToWidgetIfPossible(const PlatformGestureEvent&, RenderObject*);
     bool sendScrollEventToView(const PlatformGestureEvent&, const FloatSize&);
-    LocalFrame* getSubFrameForGestureEvent(const IntPoint& touchAdjustedPoint, const PlatformGestureEvent&);
 
     AutoscrollController* autoscrollController() const;
     bool panScrollInProgress() const;
     void setLastKnownMousePosition(const PlatformMouseEvent&);
 
     LocalFrame* const m_frame;
 
     bool m_mousePressed;
     bool m_capturesDragging;
     RefPtr<Node> m_mousePressNode;
@@ skipping 74 matching lines @@
     float m_syntheticPageScaleFactor;
 
     Timer<EventHandler> m_activeIntervalTimer;
     double m_lastShowPressTimestamp;
     RefPtr<Element> m_lastDeferredTapElement;
 };
 
 } // namespace WebCore
 
 #endif // EventHandler_h