Reduce hit test on ShowPress by moving event targeting to WebViewImpl

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 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef EventHandler_h
 #define EventHandler_h
 
 #include "core/editing/TextGranularity.h"
 #include "core/events/TextEventInputType.h"
 #include "core/page/DragActions.h"
+#include "core/page/EventWithHitTestResults.h"
 #include "core/page/FocusType.h"
 #include "core/rendering/HitTestRequest.h"
 #include "core/rendering/style/RenderStyleConstants.h"
 #include "platform/Cursor.h"
 #include "platform/PlatformMouseEvent.h"
 #include "platform/Timer.h"
 #include "platform/UserGestureIndicator.h"
 #include "platform/geometry/LayoutPoint.h"
 #include "platform/heap/Handle.h"
 #include "platform/scroll/ScrollTypes.h"
@@ skipping 32 matching lines @@
 class RenderObject;
 class RenderWidget;
 class ScrollableArea;
 class Scrollbar;
 class TextEvent;
 class TouchEvent;
 class VisibleSelection;
 class WheelEvent;
 class Widget;
 
-typedef EventWithHitTestResults<PlatformGestureEvent> GestureEventWithHitTestResults;
-typedef EventWithHitTestResults<PlatformMouseEvent> MouseEventWithHitTestResults;
-
 enum AppendTrailingWhitespace { ShouldAppendTrailingWhitespace, DontAppendTrailingWhitespace };
 enum CheckDragHysteresis { ShouldCheckDragHysteresis, DontCheckDragHysteresis };
 
 class EventHandler : public NoBaseWillBeGarbageCollectedFinalized<EventHandler> {
     WTF_MAKE_NONCOPYABLE(EventHandler);
 public:
     explicit EventHandler(LocalFrame*);
     ~EventHandler();
     void trace(Visitor*);
 
@@ skipping 43 matching lines @@
 
     bool handleMouseMoveEvent(const PlatformMouseEvent&);
     void handleMouseLeaveEvent(const PlatformMouseEvent&);
 
     bool handleMousePressEvent(const PlatformMouseEvent&);
     bool handleMouseReleaseEvent(const PlatformMouseEvent&);
     bool handleWheelEvent(const PlatformWheelEvent&);
     void defaultWheelEventHandler(Node*, WheelEvent*);
 
     // Called on the local root frame exactly once per gesture event.
-    bool handleGestureEvent(const PlatformGestureEvent&);
+    bool handleGestureEvent(const GestureEventWithHitTestResults&);
 
     // Hit-test the provided (non-scroll) gesture event, applying touch-adjustment and updating
     // hover/active state across all frames if necessary. This should be called at most once
     // per gesture event, and called on the local root frame.
     // Note: This is similar to (the less clearly named) prepareMouseEvent.
     // FIXME: Remove readOnly param when there is only ever a single call to this.
     GestureEventWithHitTestResults targetGestureEvent(const PlatformGestureEvent&, bool readOnly = false);
 
     // Handle the provided non-scroll gesture event. Should be called only on the inner frame.
     bool handleGestureEventInFrame(const GestureEventWithHitTestResults&);
@@ skipping 241 matching lines @@
     bool m_longTapShouldInvokeContextMenu;
 
     Timer<EventHandler> m_activeIntervalTimer;
     double m_lastShowPressTimestamp;
     RefPtrWillBeMember<Element> m_lastDeferredTapElement;
 };
 
 } // namespace blink
 
 #endif // EventHandler_h