Keep track of coalesced events in main thread event queue

third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp

 /*
  * Copyright (C) 2014 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 290 matching lines @@
 void WebFrameWidgetImpl::themeChanged() {
   FrameView* view = m_localRoot->frameView();
 
   WebRect damagedRect(0, 0, m_size.width, m_size.height);
   view->invalidateRect(damagedRect);
 }
 
 const WebInputEvent* WebFrameWidgetImpl::m_currentInputEvent = nullptr;
 
 WebInputEventResult WebFrameWidgetImpl::handleInputEvent(
-    const WebInputEvent& inputEvent) {
+    const WebCoalescedInputEvent& coalescedEvent) {
+  const WebInputEvent& inputEvent = coalescedEvent.event();
   TRACE_EVENT1("input", "WebFrameWidgetImpl::handleInputEvent", "type",
                WebInputEvent::GetName(inputEvent.type()));
 
   // If a drag-and-drop operation is in progress, ignore input events.
   if (m_doingDragAndDrop)
     return WebInputEventResult::HandledSuppressed;
 
   // Don't handle events once we've started shutting down.
   if (!page())
     return WebInputEventResult::NotHandled;
@@ skipping 50 matching lines @@
     }
 
     node->dispatchMouseEvent(
         PlatformMouseEventBuilder(
             m_localRoot->frameView(),
             static_cast<const WebMouseEvent&>(inputEvent)),
         eventType, static_cast<const WebMouseEvent&>(inputEvent).clickCount);
     return WebInputEventResult::HandledSystem;
   }
 
-  return PageWidgetDelegate::handleInputEvent(
-      *this, WebCoalescedInputEvent(inputEvent), m_localRoot->frame());
+  return PageWidgetDelegate::handleInputEvent(*this, coalescedEvent,
+                                              m_localRoot->frame());
 }
 
 void WebFrameWidgetImpl::setCursorVisibilityState(bool isVisible) {
   page()->setIsCursorVisible(isVisible);
 }
 
 bool WebFrameWidgetImpl::hasTouchEventHandlersAt(const WebPoint& point) {
   // FIXME: Implement this. Note that the point must be divided by
   // pageScaleFactor.
   return true;
@@ skipping 742 matching lines @@
   return nullptr;
 }
 
 LocalFrame* WebFrameWidgetImpl::focusedLocalFrameAvailableForIme() const {
   if (!m_imeAcceptEvents)
     return nullptr;
   return focusedLocalFrameInWidget();
 }
 
 }  // namespace blink