Add latency measurement system

content/common/gpu/client/command_buffer_proxy_impl.cc

 // 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.
 
 #include "content/common/gpu/client/command_buffer_proxy_impl.h"
 
 #include "base/callback.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
 #include "base/process_util.h"
@@ skipping 52 matching lines @@
   IPC_BEGIN_MESSAGE_MAP(CommandBufferProxyImpl, message)
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_Destroyed, OnDestroyed);
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_NotifyRepaint,
                         OnNotifyRepaint);
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_EchoAck, OnEchoAck);
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_ConsoleMsg, OnConsoleMessage);
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_SetMemoryAllocation,
                         OnSetMemoryAllocation);
     IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_SignalSyncPointAck,
                         OnSignalSyncPointAck);
+    IPC_MESSAGE_HANDLER(GpuCommandBufferMsg_SetLatencyInfo,
+                        OnSetLatencyInfo);
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   DCHECK(handled);
   return handled;
 }
 
 void CommandBufferProxyImpl::OnChannelError() {
   OnDestroyed(gpu::error::kUnknown);
 }
@@ skipping 123 matching lines @@
   if (last_put_offset_ == put_offset)
     return;
 
   last_put_offset_ = put_offset;
 
   Send(new GpuCommandBufferMsg_AsyncFlush(route_id_,
                                           put_offset,
                                           ++flush_count_));
 }
 
+void CommandBufferProxyImpl::SetLatencyInfo(
+    const WebKit::WebLatencyInfoImpl& latency_info) {
+  Send(new GpuCommandBufferMsg_SetLatencyInfo(route_id_, latency_info));
+}
+
+void CommandBufferProxyImpl::SetLatencyInfoCallback(
+    const GpuLatencyInfoCallback& callback) {
+  latency_info_callback_ = callback;
+}
+
+void CommandBufferProxyImpl::OnSetLatencyInfo(
+    const WebKit::WebLatencyInfoImpl& latency_info) {
+  if (!latency_info_callback_.is_null())
+    latency_info_callback_.Run(latency_info);
+}
+
 gpu::CommandBuffer::State CommandBufferProxyImpl::FlushSync(
     int32 put_offset,
     int32 last_known_get) {
   TRACE_EVENT1("gpu", "CommandBufferProxyImpl::FlushSync", "put_offset",
                put_offset);
   Flush(put_offset);
   TryUpdateState();
   if (last_known_get == last_state_.get_offset) {
     // Send will flag state with lost context if IPC fails.
     if (last_state_.error == gpu::error::kNoError) {
@@ skipping 348 matching lines @@
 void CommandBufferProxyImpl::SendManagedMemoryStats(
     const GpuManagedMemoryStats& stats) {
   if (last_state_.error != gpu::error::kNoError)
     return;
 
   Send(new GpuCommandBufferMsg_SendClientManagedMemoryStats(route_id_,
                                                             stats));
 }
 
 }  // namespace content