Add latency measurement system

content/common/gpu/gpu_command_buffer_stub.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_GPU_COMMAND_BUFFER_STUB_H_
 #define CONTENT_COMMON_GPU_GPU_COMMAND_BUFFER_STUB_H_
 
 #include <deque>
 #include <string>
 #include <vector>
@@ skipping 11 matching lines @@
 #include "gpu/command_buffer/service/context_group.h"
 #include "gpu/command_buffer/service/gpu_scheduler.h"
 #include "ipc/ipc_listener.h"
 #include "ipc/ipc_sender.h"
 #include "media/base/video_decoder_config.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/size.h"
 #include "ui/gl/gl_surface.h"
 #include "ui/gl/gpu_preference.h"
 #include "ui/surface/transport_dib.h"
+#include "webkit/compositor_bindings/web_latency_info_impl.h"
 
 #if defined(OS_MACOSX)
 #include "ui/surface/accelerated_surface_mac.h"
 #endif
 
 namespace gpu {
 namespace gles2 {
 class ImageManager;
 class MailboxManager;
 }
@@ skipping 13 matching lines @@
  public:
   class DestructionObserver {
    public:
     // Called in Destroy(), before the context/surface are released.
     virtual void OnWillDestroyStub(GpuCommandBufferStub* stub) = 0;
 
    protected:
     virtual ~DestructionObserver() {}
   };
 
+  typedef base::Callback<void(const cc::LatencyInfo&)>
+      LatencyInfoCallback;
+
   GpuCommandBufferStub(
       GpuChannel* channel,
       GpuCommandBufferStub* share_group,
       const gfx::GLSurfaceHandle& handle,
       gpu::gles2::MailboxManager* mailbox_manager,
       gpu::gles2::ImageManager* image_manager,
       const gfx::Size& size,
       const gpu::gles2::DisallowedFeatures& disallowed_features,
       const std::string& allowed_extensions,
       const std::vector<int32>& attribs,
@@ skipping 50 matching lines @@
 
   void AddDestructionObserver(DestructionObserver* observer);
   void RemoveDestructionObserver(DestructionObserver* observer);
 
   // Associates a sync point to this stub. When the stub is destroyed, it will
   // retire all sync points that haven't been previously retired.
   void AddSyncPoint(uint32 sync_point);
 
   void SetPreemptByCounter(scoped_refptr<gpu::RefCountedCounter> counter);
 
+  void SetLatencyInfoCallback(const LatencyInfoCallback& callback);
+
+  void SetLatencyInfo(const cc::LatencyInfo& latency_info);
+
  private:
   GpuMemoryManager* GetMemoryManager();
   bool MakeCurrent();
   void Destroy();
 
   // Cleans up and sends reply if OnInitialize failed.
   void OnInitializeFailed(IPC::Message* reply_message);
 
   // Message handlers:
   void OnInitialize(base::SharedMemoryHandle shared_state_shm,
@@ skipping 29 matching lines @@
   void OnSignalSyncPoint(uint32 sync_point, uint32 id);
   void OnSignalSyncPointAck(uint32 id);
 
   void OnReceivedClientManagedMemoryStats(const GpuManagedMemoryStats& stats);
   void OnSetClientHasMemoryAllocationChangedCallback(bool);
 
   void OnReschedule();
 
   void OnCommandProcessed();
   void OnParseError();
+  void OnSetLatencyInfo(const cc::LatencyInfo& latency_info);
 
   void ReportState();
 
   // Wrapper for GpuScheduler::PutChanged that sets the crash report URL.
   void PutChanged();
 
   // Poll the command buffer to execute work.
   void PollWork();
 
   // Whether this command buffer needs to be polled again in the future.
@@ skipping 43 matching lines @@
   ObserverList<DestructionObserver> destruction_observers_;
 
   // A queue of sync points associated with this stub.
   std::deque<uint32> sync_points_;
   int sync_point_wait_count_;
 
   bool delayed_work_scheduled_;
 
   scoped_refptr<gpu::RefCountedCounter> preempt_by_counter_;
 
+  LatencyInfoCallback latency_info_callback_;
+
   GURL active_url_;
   size_t active_url_hash_;
 
   size_t total_gpu_memory_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuCommandBufferStub);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_GPU_COMMAND_BUFFER_STUB_H_