Send vsync timebase updates to the browser compositor

content/common/gpu/client/webgraphicscontext3d_command_buffer_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_COMMON_GPU_CLIENT_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_
 #define CONTENT_COMMON_GPU_CLIENT_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 501 matching lines @@
   virtual void setVisibilityCHROMIUM(bool visible);
 
   virtual void discardFramebufferEXT(WGC3Denum target,
                                      WGC3Dsizei numAttachments,
                                      const WGC3Denum* attachments);
   virtual void ensureFramebufferCHROMIUM();
 
   virtual void setMemoryAllocationChangedCallbackCHROMIUM(
       WebGraphicsMemoryAllocationChangedCallbackCHROMIUM* callback);
 
+  virtual void setUpdateVSyncTimeCallbackCHROMIUM(
+      WebGraphicsUpdateVSyncTimeCallbackCHROMIUM* callback);
+
   virtual void copyTextureToParentTextureCHROMIUM(
       WebGLId texture, WebGLId parentTexture);
 
   virtual void rateLimitOffscreenContextCHROMIUM();
 
   virtual WebKit::WebString getRequestableExtensionsCHROMIUM();
   virtual void requestExtensionCHROMIUM(const char*);
 
   virtual void blitFramebufferCHROMIUM(
       WGC3Dint srcX0, WGC3Dint srcY0, WGC3Dint srcX1, WGC3Dint srcY1,
@@ skipping 127 matching lines @@
   virtual void OnErrorMessage(const std::string& message, int id);
 
   // Check if we should call into the swap client. We can only do that on the
   // main thread.
   bool ShouldUseSwapClient();
 
   // MemoryAllocationChanged callback.
   void OnMemoryAllocationChanged(const GpuMemoryAllocationForRenderer&
       allocation);
 
+  // UpdateVSyncTime callback.
+  void OnUpdateVSyncTime(int64 time);
+
   bool initialize_failed_;
 
   // The channel factory to talk to the GPU process
   GpuChannelHostFactory* factory_;
 
   bool visible_;
   bool free_command_buffer_when_invisible_;
 
   // State needed by MaybeInitializeGL.
   scoped_refptr<GpuChannelHost> host_;
   int32 surface_id_;
   GURL active_url_;
   base::WeakPtr<WebGraphicsContext3DSwapBuffersClient> swap_client_;
 
   WebGraphicsMemoryAllocationChangedCallbackCHROMIUM*
       memory_allocation_changed_callback_;
 
+  WebGraphicsUpdateVSyncTimeCallbackCHROMIUM* update_vsync_time_callback_;
+
   WebGraphicsContext3D::WebGraphicsContextLostCallback* context_lost_callback_;
   WGC3Denum context_lost_reason_;
 
   WebGraphicsContext3D::WebGraphicsErrorMessageCallback*
       error_message_callback_;
   scoped_ptr<WebGraphicsContext3DErrorMessageCallback>
       client_error_message_callback_;
 
   WebGraphicsContext3D::WebGraphicsSwapBuffersCompleteCallbackCHROMIUM*
       swapbuffers_complete_callback_;
@@ skipping 24 matching lines @@
   gpu::gles2::GLES2CmdHelper* gles2_helper_;
   gpu::TransferBuffer* transfer_buffer_;
   gpu::gles2::GLES2Implementation* gl_;
   Error last_error_;
   int frame_number_;
   bool bind_generates_resources_;
   bool use_echo_for_swap_ack_;
 };
 
 #endif  // CONTENT_COMMON_GPU_CLIENT_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_