Bundle DidOverscrollParams with the InputEventAck

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"
 #include "content/public/browser/native_web_keyboard_event.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 
 namespace ui {
 struct LatencyInfo;
 }
 
 namespace content {
 
 class OverscrollController;
+struct DidOverscrollParams;
 
 class CONTENT_EXPORT InputRouterClient {
  public:
   virtual ~InputRouterClient() {}
 
   // Called just prior to events being sent to the renderer, giving the client
   // a chance to perform in-process event filtering.
   // The returned disposition will yield the following behavior:
   //   * |NOT_CONSUMED| will result in |input_event| being sent as usual.
   //   * |CONSUMED| or |NO_CONSUMER_EXISTS| will trigger the appropriate ack.
@@ skipping 18 matching lines @@
 
   // 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;
+
+  virtual void DidOverscroll(const DidOverscrollParams& params) = 0;
 };
 
 } // namespace content
 
 #endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_INPUT_ROUTER_CLIENT_H_