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

content/common/gpu/client/context_provider_command_buffer.cc

 // Copyright (c) 2013 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/context_provider_command_buffer.h"
 
 #include <set>
 #include <vector>
 
 #include "base/callback_helpers.h"
@@ skipping 21 matching lines @@
     provider_->OnLostContext();
   }
 
  private:
   ContextProviderCommandBuffer* provider_;
 };
 
 scoped_refptr<ContextProviderCommandBuffer>
 ContextProviderCommandBuffer::Create(
     scoped_ptr<WebGraphicsContext3DCommandBufferImpl> context3d,
-    const std::string& debug_name) {
+    CommandBufferContextType type) {
   if (!context3d)
     return NULL;
 
-  return new ContextProviderCommandBuffer(context3d.Pass(), debug_name);
+  return new ContextProviderCommandBuffer(context3d.Pass(), type);
 }
 
 ContextProviderCommandBuffer::ContextProviderCommandBuffer(
     scoped_ptr<WebGraphicsContext3DCommandBufferImpl> context3d,
-    const std::string& debug_name)
+    CommandBufferContextType type)
     : context3d_(context3d.Pass()),
-      debug_name_(debug_name),
+      context_type_(type),
+      debug_name_(CommandBufferContextTypeToString(type)),
       destroyed_(false) {
   DCHECK(main_thread_checker_.CalledOnValidThread());
   DCHECK(context3d_);
   context_thread_checker_.DetachFromThread();
 }
 
 ContextProviderCommandBuffer::~ContextProviderCommandBuffer() {
   DCHECK(main_thread_checker_.CalledOnValidThread() ||
          context_thread_checker_.CalledOnValidThread());
 
@@ skipping 22 matching lines @@
   return context3d_.get();
 }
 
 bool ContextProviderCommandBuffer::BindToCurrentThread() {
   // This is called on the thread the context will be used.
   DCHECK(context_thread_checker_.CalledOnValidThread());
 
   if (lost_context_callback_proxy_)
     return true;
 
+  context3d_->SetContextType(context_type_);
   if (!context3d_->InitializeOnCurrentThread())
     return false;
 
   InitializeCapabilities();
 
   std::string unique_context_name =
       base::StringPrintf("%s-%p", debug_name_.c_str(), context3d_.get());
   context3d_->traceBeginCHROMIUM("gpu_toplevel", unique_context_name.c_str());
 
   lost_context_callback_proxy_.reset(new LostContextCallbackProxy(this));
@@ skipping 128 matching lines @@
 
 void ContextProviderCommandBuffer::SetMemoryPolicyChangedCallback(
     const MemoryPolicyChangedCallback& memory_policy_changed_callback) {
   DCHECK(context_thread_checker_.CalledOnValidThread());
   DCHECK(memory_policy_changed_callback_.is_null() ||
          memory_policy_changed_callback.is_null());
   memory_policy_changed_callback_ = memory_policy_changed_callback;
 }
 
 }  // namespace content