gpu: Fix some context lost marking glitches+leaks and add UMA stats

content/renderer/render_thread_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/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <vector>
@@ skipping 1276 matching lines @@
       bool lose_context_when_out_of_memory = false;
       gpu_va_context_provider_ = ContextProviderCommandBuffer::Create(
           make_scoped_ptr(
               WebGraphicsContext3DCommandBufferImpl::CreateOffscreenContext(
                   gpu_channel_host.get(),
                   attributes,
                   lose_context_when_out_of_memory,
                   GURL("chrome://gpu/RenderThreadImpl::GetGpuVDAContext3D"),
                   WebGraphicsContext3DCommandBufferImpl::SharedMemoryLimits(),
                   NULL)),
-          "GPU-VideoAccelerator-Offscreen");
+          GPU_VIDEO_ACCELERATOR_CONTEXT);
     }
   }
   if (gpu_va_context_provider_.get()) {
     gpu_factories = RendererGpuVideoAcceleratorFactories::Create(
         gpu_channel_host.get(), media_task_runner, gpu_va_context_provider_);
   }
   return gpu_factories;
 }
 
 scoped_ptr<WebGraphicsContext3DCommandBufferImpl>
@@ skipping 21 matching lines @@
     shared_main_thread_contexts_ = NULL;
 #if defined(OS_ANDROID)
     if (SynchronousCompositorFactory* factory =
             SynchronousCompositorFactory::GetInstance()) {
       shared_main_thread_contexts_ = factory->CreateOffscreenContextProvider(
           GetOffscreenAttribs(), "Offscreen-MainThread");
     }
 #endif
     if (!shared_main_thread_contexts_.get()) {
       shared_main_thread_contexts_ = ContextProviderCommandBuffer::Create(
-          CreateOffscreenContext3d(), "Offscreen-MainThread");
+          CreateOffscreenContext3d(), RENDERER_MAINTHREAD_CONTEXT);
     }
     if (shared_main_thread_contexts_.get() &&
         !shared_main_thread_contexts_->BindToCurrentThread())
       shared_main_thread_contexts_ = NULL;
   }
   return shared_main_thread_contexts_;
 }
 
 AudioRendererMixerManager* RenderThreadImpl::GetAudioRendererMixerManager() {
   if (!audio_renderer_mixer_manager_) {
@@ skipping 545 matching lines @@
 }
 
 void RenderThreadImpl::PendingRenderFrameConnect::OnConnectionError() {
   size_t erased =
       RenderThreadImpl::current()->pending_render_frame_connects_.erase(
           routing_id_);
   DCHECK_EQ(1u, erased);
 }
 
 }  // namespace content