Reduce hit test on ShowPress by moving event targeting to WebViewImpl

Source/web/WebPagePopupImpl.cpp

 /*
  * Copyright (C) 2012 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 313 matching lines @@
     // The main WebView receives key events and forward them to this via handleKeyEvent().
     ASSERT_NOT_REACHED();
     return false;
 }
 
 bool WebPagePopupImpl::handleGestureEvent(const WebGestureEvent& event)
 {
     if (m_closing || !m_page || !m_page->mainFrame() || !toLocalFrame(m_page->mainFrame())->view())
         return false;
     LocalFrame& frame = *toLocalFrame(m_page->mainFrame());
-    return frame.eventHandler().handleGestureEvent(PlatformGestureEventBuilder(frame.view(), event));
+    PlatformGestureEventBuilder platformEvent(frame.view(), event);
+    GestureEventWithHitTestResults targetedEvent = frame.eventHandler().targetGestureEvent(platformEvent);
+    return frame.eventHandler().handleGestureEvent(targetedEvent);
 }
 
 bool WebPagePopupImpl::handleInputEvent(const WebInputEvent& event)
 {
     if (m_closing)
         return false;
     return PageWidgetDelegate::handleInputEvent(m_page.get(), *this, event);
 }
 
 bool WebPagePopupImpl::handleKeyEvent(const PlatformKeyboardEvent& event)
@@ skipping 49 matching lines @@
     // A WebPagePopupImpl instance usually has two references.
     //  - One owned by the instance itself. It represents the visible widget.
     //  - One owned by a WebViewImpl. It's released when the WebViewImpl ask the
     //    WebPagePopupImpl to close.
     // We need them because the closing operation is asynchronous and the widget
     // can be closed while the WebViewImpl is unaware of it.
     return adoptRef(new WebPagePopupImpl(client)).leakRef();
 }
 
 } // namespace blink