Added more detailed result codes for CreateViewCommandBuffer.

content/browser/gpu/gpu_process_host.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/browser/gpu/gpu_process_host.h"
 
 #include "base/base64.h"
 #include "base/base_switches.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 628 matching lines @@
 
   DCHECK(CalledOnValidThread());
 
   if (!compositing_surface.is_null() &&
       Send(new GpuMsg_CreateViewCommandBuffer(
           compositing_surface, surface_id, client_id, init_params, route_id))) {
     create_command_buffer_requests_.push(callback);
     surface_refs_.insert(std::make_pair(surface_id,
         GpuSurfaceTracker::GetInstance()->GetSurfaceRefForSurface(surface_id)));
   } else {
-    callback.Run(false);
+    // Could distinguish here between compositing_surface being NULL
+    // and Send failing, if desired.
+    callback.Run(CREATE_COMMAND_BUFFER_FAILED_AND_CHANNEL_LOST);
   }
 }
 
 void GpuProcessHost::CreateImage(gfx::PluginWindowHandle window,
                                  int client_id,
                                  int image_id,
                                  const CreateImageCallback& callback) {
   TRACE_EVENT0("gpu", "GpuProcessHost::CreateImage");
 
   DCHECK(CalledOnValidThread());
@@ skipping 78 matching lines @@
         logging::LOG_WARNING,
         "WARNING",
         "Hardware acceleration is unavailable."));
     return;
   }
 
   callback.Run(channel_handle,
                GpuDataManagerImpl::GetInstance()->GetGPUInfo());
 }
 
-void GpuProcessHost::OnCommandBufferCreated(bool succeeded) {
+void GpuProcessHost::OnCommandBufferCreated(CreateCommandBufferResult result) {
   TRACE_EVENT0("gpu", "GpuProcessHost::OnCommandBufferCreated");
 
   if (create_command_buffer_requests_.empty())
     return;
 
   CreateCommandBufferCallback callback =
       create_command_buffer_requests_.front();
   create_command_buffer_requests_.pop();
-  callback.Run(succeeded);
+  callback.Run(result);
 }
 
 void GpuProcessHost::OnDestroyCommandBuffer(int32 surface_id) {
   TRACE_EVENT0("gpu", "GpuProcessHost::OnDestroyCommandBuffer");
   SurfaceRefMap::iterator it = surface_refs_.find(surface_id);
   if (it != surface_refs_.end()) {
     surface_refs_.erase(it);
   }
 }
 
@@ skipping 286 matching lines @@
   while (!channel_requests_.empty()) {
     EstablishChannelCallback callback = channel_requests_.front();
     channel_requests_.pop();
     callback.Run(IPC::ChannelHandle(), gpu::GPUInfo());
   }
 
   while (!create_command_buffer_requests_.empty()) {
     CreateCommandBufferCallback callback =
         create_command_buffer_requests_.front();
     create_command_buffer_requests_.pop();
-    callback.Run(false);
+    callback.Run(CREATE_COMMAND_BUFFER_FAILED_AND_CHANNEL_LOST);
   }
 }
 
 void GpuProcessHost::BlockLiveOffscreenContexts() {
   for (std::multiset<GURL>::iterator iter =
            urls_with_live_offscreen_contexts_.begin();
        iter != urls_with_live_offscreen_contexts_.end(); ++iter) {
     GpuDataManagerImpl::GetInstance()->BlockDomainFrom3DAPIs(
         *iter, GpuDataManagerImpl::DOMAIN_GUILT_UNKNOWN);
   }
@@ skipping 44 matching lines @@
   TRACE_EVENT0("gpu", "GpuProcessHost::OnCacheShader");
   ClientIdToShaderCacheMap::iterator iter =
       client_id_to_shader_cache_.find(client_id);
   // If the cache doesn't exist then this is an off the record profile.
   if (iter == client_id_to_shader_cache_.end())
     return;
   iter->second->Cache(GetShaderPrefixKey() + ":" + key, shader);
 }
 
 }  // namespace content