Keep track of coalesced events in main thread event queue

content/renderer/render_widget.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 450 matching lines @@
 
   // Used to force the size of a window when running layout tests.
   void SetWindowRectSynchronously(const gfx::Rect& new_window_rect);
 #if defined(USE_EXTERNAL_POPUP_MENU)
   void SetExternalPopupOriginAdjustmentsForEmulation(
       ExternalPopupMenu* popup,
       RenderWidgetScreenMetricsEmulator* emulator);
 #endif
 
   // RenderWidget IPC message handlers
-  void OnHandleInputEvent(const blink::WebInputEvent* event,
-                          const ui::LatencyInfo& latency_info,
-                          InputEventDispatchType dispatch_type);
+  void OnHandleInputEvent(
+      const blink::WebInputEvent* event,
+      const std::vector<const blink::WebInputEvent*>& coalescedEvents,
+      const ui::LatencyInfo& latency_info,
+      InputEventDispatchType dispatch_type);
   void OnCursorVisibilityChange(bool is_visible);
   void OnMouseCaptureLost();
   void OnSetEditCommandsForNextKeyEvent(const EditCommands& edit_commands);
   virtual void OnSetFocus(bool enable);
   void OnClose();
   void OnCreatingNewAck();
   virtual void OnResize(const ResizeParams& params);
   void OnEnableDeviceEmulation(const blink::WebDeviceEmulationParams& params);
   void OnDisableDeviceEmulation();
   virtual void OnWasHidden();
@@ skipping 352 matching lines @@
   // being handled. If the current event results in starting a drag/drop
   // session, this info is sent to the browser along with other drag/drop info.
   DragEventSourceInfo possible_drag_event_info_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_