Keep track of coalesced events in main thread event queue

third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp

Index: third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp b/third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp
index b8812f5ba5b34e147f84df08014daeb296c9320b..15688100631ca45fdcd8c253a4127b1179b69414 100644
--- a/third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp
+++ b/third_party/WebKit/Source/web/WebFrameWidgetImpl.cpp
@@ -308,7 +308,8 @@ void WebFrameWidgetImpl::themeChanged() {
 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()));
 
@@ -379,8 +380,8 @@ WebInputEventResult WebFrameWidgetImpl::handleInputEvent(
     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) {