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

Source/web/WebViewImpl.h

 /*
  * Copyright (C) 2010 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 507 matching lines @@
     // Returns the bounding box of the block type node touched by the WebRect.
     WebRect computeBlockBounds(const WebRect&, bool ignoreClipping);
 
     WebCore::IntPoint clampOffsetAtScale(const WebCore::IntPoint& offset, float scale);
 
     // Exposed for tests.
     WebVector<WebCompositionUnderline> compositionUnderlines() const;
 
     WebLayerTreeView* layerTreeView() const { return m_layerTreeView; }
 
+    bool isPinchZoomable() const;
+
 private:
     float legibleScale() const;
     void refreshPageScaleFactorAfterLayout();
     void resumeTreeViewCommits();
     void setUserAgentPageScaleConstraints(WebCore::PageScaleConstraints newConstraints);
     float clampPageScaleFactorToLimits(float) const;
     WebCore::IntSize contentsSize() const;
 
     void resetSavedScrollAndScaleState();
 
@@ skipping 56 matching lines @@
 
     // PageWidgetEventHandler functions
     virtual void handleMouseLeave(WebCore::LocalFrame&, const WebMouseEvent&) OVERRIDE;
     virtual void handleMouseDown(WebCore::LocalFrame&, const WebMouseEvent&) OVERRIDE;
     virtual void handleMouseUp(WebCore::LocalFrame&, const WebMouseEvent&) OVERRIDE;
     virtual bool handleMouseWheel(WebCore::LocalFrame&, const WebMouseWheelEvent&) OVERRIDE;
     virtual bool handleGestureEvent(const WebGestureEvent&) OVERRIDE;
     virtual bool handleKeyEvent(const WebKeyboardEvent&) OVERRIDE;
     virtual bool handleCharEvent(const WebKeyboardEvent&) OVERRIDE;
 
+    bool earlyGestureShowPress(const WebCore::PlatformGestureEvent&);
+
     WebCore::InputMethodContext* inputMethodContext();
     WebPlugin* focusedPluginIfInputMethodSupported(WebCore::LocalFrame*);
 
     WebViewClient* m_client; // Can be 0 (e.g. unittests, shared workers, etc.)
     WebAutofillClient* m_autofillClient;
     WebSpellCheckClient* m_spellCheckClient;
     WebPasswordGeneratorClient* m_passwordGeneratorClient;
 
     ChromeClientImpl m_chromeClientImpl;
     ContextMenuClientImpl m_contextMenuClientImpl;
@@ skipping 148 matching lines @@
     OwnPtr<FullscreenController> m_fullscreenController;
 
     bool m_showFPSCounter;
     bool m_showPaintRects;
     bool m_showDebugBorders;
     bool m_continuousPaintingEnabled;
     bool m_showScrollBottleneckRects;
     WebColor m_baseBackgroundColor;
     WebColor m_backgroundColorOverride;
     float m_zoomFactorOverride;
+    bool m_sentEarlyShowPress;
 };
 
 // We have no ways to check if the specified WebView is an instance of
 // WebViewImpl because WebViewImpl is the only implementation of WebView.
 DEFINE_TYPE_CASTS(WebViewImpl, WebView, webView, true, true);
 
 } // namespace blink
 
 #endif