Fix WebView compositor input handling

content/renderer/render_thread_impl.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_THREAD_IMPL_H_
 #define CONTENT_RENDERER_RENDER_THREAD_IMPL_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 59 matching lines @@
 class AppCacheDispatcher;
 class AudioInputMessageFilter;
 class AudioMessageFilter;
 class AudioRendererMixerManager;
 class ContextProviderCommandBuffer;
 class DBMessageFilter;
 class DevToolsAgentFilter;
 class DomStorageDispatcher;
 class GpuChannelHost;
 class IndexedDBDispatcher;
+class InputEventFilter;
 class InputHandlerManager;
 class MediaStreamCenter;
 class MediaStreamDependencyFactory;
 class P2PSocketDispatcher;
 class PeerConnectionTracker;
 class RendererWebKitPlatformSupportImpl;
 class RenderProcessObserver;
 class VideoCaptureImplManager;
 class WebDatabaseObserverImpl;
 class WebGraphicsContext3DCommandBufferImpl;
@@ skipping 340 matching lines @@
   // May be null if overridden by ContentRendererClient.
   scoped_ptr<base::Thread> compositor_thread_;
 
   // Thread for running multimedia operations (e.g., video decoding).
   scoped_ptr<base::Thread> media_thread_;
 
   // Will point to appropriate MessageLoopProxy after initialization,
   // regardless of whether |compositor_thread_| is overriden.
   scoped_refptr<base::MessageLoopProxy> compositor_message_loop_proxy_;
 
+  // May be null if unused by the |input_handler_manager_|.
+  scoped_refptr<InputEventFilter> input_event_filter_;
   scoped_ptr<InputHandlerManager> input_handler_manager_;
   scoped_refptr<IPC::ForwardingMessageFilter> compositor_output_surface_filter_;
 
   class RendererContextProviderCommandBuffer;
   scoped_refptr<RendererContextProviderCommandBuffer>
       shared_contexts_main_thread_;
   scoped_refptr<RendererContextProviderCommandBuffer>
       shared_contexts_compositor_thread_;
 
   ObserverList<RenderProcessObserver> observers_;
 
   class GpuVDAContextLostCallback;
   scoped_ptr<GpuVDAContextLostCallback> context_lost_cb_;
   scoped_ptr<WebGraphicsContext3DCommandBufferImpl> gpu_vda_context3d_;
 
   scoped_ptr<AudioRendererMixerManager> audio_renderer_mixer_manager_;
   scoped_ptr<media::AudioHardwareConfig> audio_hardware_config_;
 
   HistogramCustomizer histogram_customizer_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderThreadImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_THREAD_IMPL_H_