Add latency measurement system

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 611 matching lines @@
       WGC3Denum target,
       WGC3Dint level,
       WGC3Dint xoffset,
       WGC3Dint yoffset,
       WGC3Dsizei width,
       WGC3Dsizei height,
       WGC3Denum format,
       WGC3Denum type,
       const void* pixels);
 
+  virtual void setLatencyInfoCHROMIUM(
+      const WebKit::WebLatencyInfo& latencyInfo);
+  virtual void setLatencyInfoCallbackCHROMIUM(
+      WebGraphicsLatencyInfoCallbackCHROMIUM* callback);
  protected:
   virtual GrGLInterface* onCreateGrGLInterface();
 
  private:
   // These are the same error codes as used by EGL.
   enum Error {
     SUCCESS               = 0x3000,
     BAD_ATTRIBUTE         = 0x3004,
     CONTEXT_LOST          = 0x300E
   };
@@ skipping 55 matching lines @@
 
   // Check if we should call into the swap client. We can only do that on the
   // main thread.
   bool ShouldUseSwapClient();
 
   // MemoryAllocationChanged callback.
   void OnMemoryAllocationChanged(
       WebGraphicsMemoryAllocationChangedCallbackCHROMIUM* callback,
       const GpuMemoryAllocationForRenderer& allocation);
 
+  void OnSetLatencyInfo(const WebKit::WebLatencyInfoImpl& latency_info);
+
   // Convert the gpu cutoff enum to the WebKit enum.
   static WebGraphicsMemoryAllocation::PriorityCutoff WebkitPriorityCutoff(
       GpuMemoryAllocationForRenderer::PriorityCutoff priorityCutoff);
 
   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_;
 
   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_;
 
+  WebGraphicsContext3D::WebGraphicsLatencyInfoCallbackCHROMIUM*
+      latency_info_callback_;
+
   WebKit::WebGraphicsContext3D::Attributes attributes_;
   gfx::GpuPreference gpu_preference_;
   int cached_width_, cached_height_;
 
   // For tracking which FBO is bound.
   WebGLId bound_fbo_;
 
   // Errors raised by synthesizeGLError().
   std::vector<WGC3Denum> synthetic_errors_;
 
@@ skipping 15 matching lines @@
   gpu::gles2::GLES2Implementation* gl_;
   Error last_error_;
   int frame_number_;
   bool bind_generates_resources_;
   bool use_echo_for_swap_ack_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_CLIENT_WEBGRAPHICSCONTEXT3D_COMMAND_BUFFER_IMPL_H_