Keep track of coalesced events in main thread event queue

third_party/WebKit/Source/web/WebViewImpl.cpp

Index: third_party/WebKit/Source/web/WebViewImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebViewImpl.cpp b/third_party/WebKit/Source/web/WebViewImpl.cpp
index 3eefe298696687b36544eed2852c4e7256813907..e399efa465a70c1c34b7b800ed5b8a7885a14a73 100644
--- a/third_party/WebKit/Source/web/WebViewImpl.cpp
+++ b/third_party/WebKit/Source/web/WebViewImpl.cpp
@@ -961,7 +961,7 @@ WebInputEventResult WebViewImpl::handleSyntheticWheelFromTouchpadPinchEvent(
   wheelEvent.wheelTicksX = 0;
   wheelEvent.wheelTicksY = pinchEvent.data.pinchUpdate.scale > 1 ? 1 : -1;
 
-  return handleInputEvent(wheelEvent);
+  return handleInputEvent(blink::WebCoalescedInputEvent(wheelEvent));
 }
 
 void WebViewImpl::transferActiveWheelFlingAnimation(
@@ -2109,7 +2109,8 @@ bool WebViewImpl::hasVerticalScrollbar() {
 const WebInputEvent* WebViewImpl::m_currentInputEvent = nullptr;
 
 WebInputEventResult WebViewImpl::handleInputEvent(
-    const WebInputEvent& inputEvent) {
+    const WebCoalescedInputEvent& coalescedEvent) {
+  const WebInputEvent& inputEvent = coalescedEvent.event();
   // TODO(dcheng): The fact that this is getting called when there is no local
   // main frame is problematic and probably indicates a bug in the input event
   // routing code.
@@ -2213,7 +2214,7 @@ WebInputEventResult WebViewImpl::handleInputEvent(
 
   // FIXME: This should take in the intended frame, not the local frame root.
   WebInputEventResult result = PageWidgetDelegate::handleInputEvent(
-      *this, WebCoalescedInputEvent(inputEvent), mainFrameImpl()->frame());
+      *this, coalescedEvent, mainFrameImpl()->frame());
   if (result != WebInputEventResult::NotHandled)
     return result;