Add IPC to allow gpu process to send message for console back to renderer

content/common/gpu/gpu_command_buffer_stub.cc

  // Copyright (c) 2011 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.
 
 #if defined(ENABLE_GPU)
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 231 matching lines @@
     DLOG(ERROR) << "Failed to initialize decoder.";
     OnInitializeFailed(reply_message);
     return;
   }
 
   if (CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kEnableGPUServiceLogging)) {
     decoder_->set_debug(true);
   }
 
+  decoder_->SetMsgCallback(
+      base::Bind(&GpuCommandBufferStub::SendConsoleMessage,
+                 base::Unretained(this)));
+
   SetSwapInterval();
 
   command_buffer_->SetPutOffsetChangeCallback(
       base::Bind(&gpu::GpuScheduler::PutChanged,
                  base::Unretained(scheduler_.get())));
   command_buffer_->SetGetBufferChangeCallback(
       base::Bind(&gpu::GpuScheduler::SetGetBuffer,
                  base::Unretained(scheduler_.get())));
   command_buffer_->SetParseErrorCallback(
       base::Bind(&GpuCommandBufferStub::OnParseError, base::Unretained(this)));
@@ skipping 205 matching lines @@
 
 void GpuCommandBufferStub::OnDestroyVideoDecoder(int decoder_route_id) {
   channel_->RemoveRoute(decoder_route_id);
   video_decoders_.Remove(decoder_route_id);
 }
 
 void GpuCommandBufferStub::OnSetSurfaceVisible(bool visible) {
   surface_->SetVisible(visible);
 }
 
+void GpuCommandBufferStub::SendConsoleMessage(
+    int32 id,
+    const std::string& message) {
+  GPUCommandBufferConsoleMessage console_message;
+  console_message.id = id;
+  console_message.message = message;
+  IPC::Message* msg = new GpuCommandBufferMsg_ConsoleMsg(
+      route_id_, console_message);
+  msg->set_unblock(true);
+  Send(msg);
+}
+
 #endif  // defined(ENABLE_GPU)