Added more detailed result codes for CreateViewCommandBuffer.

content/common/gpu/gpu_channel.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.
 
 #if defined(OS_WIN)
 #include <windows.h>
 #endif
 
 #include "content/common/gpu/gpu_channel.h"
 
@@ skipping 534 matching lines @@
     if (preempting_flag_.get()) {
       io_message_loop_->PostTask(
           FROM_HERE,
           base::Bind(&GpuChannelMessageFilter::UpdateStubSchedulingState,
                      filter_,
                      a_stub_is_descheduled));
     }
   }
 }
 
-bool GpuChannel::CreateViewCommandBuffer(
+CreateCommandBufferResult GpuChannel::CreateViewCommandBuffer(
     const gfx::GLSurfaceHandle& window,
     int32 surface_id,
     const GPUCreateCommandBufferConfig& init_params,
     int32 route_id) {
   TRACE_EVENT1("gpu",
                "GpuChannel::CreateViewCommandBuffer",
                "surface_id",
                surface_id);
 
   GpuCommandBufferStub* share_group = stubs_.Lookup(init_params.share_group_id);
@@ skipping 20 matching lines @@
                                route_id,
                                surface_id,
                                watchdog_,
                                software_,
                                init_params.active_url));
   if (preempted_flag_.get())
     stub->SetPreemptByFlag(preempted_flag_);
   if (!router_.AddRoute(route_id, stub.get())) {
     DLOG(ERROR) << "GpuChannel::CreateViewCommandBuffer(): "
                    "failed to add route";
-    return false;
+    return CREATE_COMMAND_BUFFER_FAILED_AND_CHANNEL_LOST;
   }
   stubs_.AddWithID(stub.release(), route_id);
-  return true;
+  return CREATE_COMMAND_BUFFER_SUCCEEDED;
 }
 
 GpuCommandBufferStub* GpuChannel::LookupCommandBuffer(int32 route_id) {
   return stubs_.Lookup(route_id);
 }
 
 void GpuChannel::CreateImage(
     gfx::PluginWindowHandle window,
     int32 image_id,
     gfx::Size* size) {
@@ skipping 251 matching lines @@
 uint64 GpuChannel::GetMemoryUsage() {
   uint64 size = 0;
   for (StubMap::Iterator<GpuCommandBufferStub> it(&stubs_);
        !it.IsAtEnd(); it.Advance()) {
     size += it.GetCurrentValue()->GetMemoryUsage();
   }
   return size;
 }
 
 }  // namespace content