Fix WebView compositor input handling

content/browser/android/in_process/synchronous_compositor_impl.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_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_IMPL_H_
 #define CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/android/in_process/synchronous_compositor_output_surface.h"
+#include "content/port/common/input_event_ack_state.h"
 #include "content/public/browser/android/synchronous_compositor.h"
 #include "content/public/browser/web_contents_user_data.h"
 
+namespace WebKit {
+class WebInputEvent;
+}
+
 namespace content {
 
 // The purpose of this class is to act as the intermediary between the various
 // components that make up the 'synchronous compositor mode' implementation and
 // expose their functionality via the SynchronousCompositor interface.
 // This class is created on the main thread but most of the APIs are called
 // from the Compositor thread.
 class SynchronousCompositorImpl
     : public SynchronousCompositor,
       public SynchronousCompositorOutputSurfaceDelegate,
       public WebContentsUserData<SynchronousCompositorImpl> {
  public:
   static SynchronousCompositorImpl* FromRoutingID(int routing_id);
 
+  InputEventAckState HandleInputEvent(const WebKit::WebInputEvent& input_event);
+
   // SynchronousCompositor
   virtual bool IsHwReady() OVERRIDE;
   virtual void SetClient(SynchronousCompositorClient* compositor_client)
       OVERRIDE;
   virtual bool DemandDrawSw(SkCanvas* canvas) OVERRIDE;
   virtual bool DemandDrawHw(
       gfx::Size view_size,
       const gfx::Transform& transform,
       gfx::Rect clip) OVERRIDE;
 
@@ skipping 17 matching lines @@
   SynchronousCompositorClient* compositor_client_;
   SynchronousCompositorOutputSurface* output_surface_;
   WebContents* contents_;
 
   DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_IN_PROCESS_SYNCHRONOUS_COMPOSITOR_IMPL_H_