Explicit interface for synchronous InputHandlerProxy input handling

content/renderer/gpu/input_handler_proxy_client.h

 // Copyright (c) 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_RENDERER_GPU_INPUT_HANDLER_PROXY_CLIENT_H_
 #define CONTENT_RENDERER_GPU_INPUT_HANDLER_PROXY_CLIENT_H_
 
 namespace WebKit {
 class WebGestureCurve;
 struct WebActiveWheelFlingParameters;
 struct WebFloatPoint;
 struct WebSize;
 }
 
 namespace content {
 
 // All callbacks invoked from the compositor thread.
 class InputHandlerProxyClient {
  public:
   // Called just before the InputHandlerProxy shuts down.
   virtual void WillShutdown() = 0;
 
-  // Exactly one of the following two callbacks will be invoked after every
-  // call to InputHandlerProxy::HandleInputEvent():
-
-  // Called when the InputHandlerProxy handled the input event and no
-  // further processing is required.
-  virtual void DidHandleInputEvent() = 0;
-
-  // Called when the InputHandlerProxy did not handle the input event.
-  // If send_to_widget is true, the input event should be forwarded to the
-  // WebWidget associated with this compositor for further processing.
-  virtual void DidNotHandleInputEvent(bool send_to_widget) = 0;
-
   // Transfers an active wheel fling animation initiated by a previously
   // handled input event out to the client.
   virtual void TransferActiveWheelFlingAnimation(
       const WebKit::WebActiveWheelFlingParameters& params) = 0;
 
   // Creates a new fling animation curve instance for device |device_source|
   // with |velocity| and already scrolled |cumulative_scroll| pixels.
   virtual WebKit::WebGestureCurve* CreateFlingAnimationCurve(
       int device_source,
       const WebKit::WebFloatPoint& velocity,
       const WebKit::WebSize& cumulative_scroll) = 0;
 
   virtual void DidOverscroll(gfx::Vector2dF accumulated_overscroll,
                              gfx::Vector2dF current_fling_velocity) = 0;
 
  protected:
   virtual ~InputHandlerProxyClient() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_GPU_INPUT_HANDLER_PROXY_CLIENT_H_