Signal input flush when all flings have terminated

content/browser/renderer_host/input/input_router_client.h

 // Copyright 2013 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_BROWSER_RENDERER_HOST_INPUT_INPUT_ROUTER_CLIENT_H_
 #define CONTENT_BROWSER_RENDERER_HOST_INPUT_INPUT_ROUTER_CLIENT_H_
 
 #include "content/browser/renderer_host/event_with_latency_info.h"
 #include "content/common/content_export.h"
 #include "content/common/input/input_event_ack_state.h"
@@ skipping 24 matching lines @@
 
   // Called each time a WebInputEvent IPC is sent.
   virtual void IncrementInFlightEventCount() = 0;
 
   // Called each time a WebInputEvent ACK IPC is received.
   virtual void DecrementInFlightEventCount() = 0;
 
   // Called when the renderer notifies that it has touch event handlers.
   virtual void OnHasTouchEventHandlers(bool has_handlers) = 0;
 
-  // Certain router implementations require periodic flushing of queued events.
-  // When this method is called, the client should ensure a timely call, either
-  // synchronous or asynchronous, of |Flush| on the InputRouter.
-  virtual void SetNeedsFlush() = 0;
-
   // Called when the router has finished flushing all events queued at the time
   // of the call to Flush.  The call will typically be asynchronous with
   // respect to the call to |Flush| on the InputRouter.
   virtual void DidFlush() = 0;
 
   // Called when the router has received an overscroll notification from the
   // renderer.
   virtual void DidOverscroll(const DidOverscrollParams& params) = 0;
+
+  // Called when a renderer fling has terminated.
+  virtual void DidStopFlinging() = 0;
 };
 
 } // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_INPUT_INPUT_ROUTER_CLIENT_H_