Update Context Client Visibility to use Scoped Pattern

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 <stddef.h>
 
 #include <memory>
 #include <set>
@@ skipping 296 matching lines @@
   DCHECK(context_thread_checker_.CalledOnValidThread());
   // Skips past the trace_impl_ as it doesn't have capabilities.
   return gles2_impl_->capabilities();
 }
 
 void ContextProviderCommandBuffer::DeleteCachedResources() {
   DCHECK(context_thread_checker_.CalledOnValidThread());
 
   if (gr_context_)
     gr_context_->FreeGpuResources();
+
+  ContextSupport()->TrimResources();
 }
 
 void ContextProviderCommandBuffer::OnLostContext() {
   DCHECK(context_thread_checker_.CalledOnValidThread());
 
   if (!lost_context_callback_.is_null())
     lost_context_callback_.Run();
   if (gr_context_)
     gr_context_->OnLostContext();
 
   gpu::CommandBuffer::State state = GetCommandBufferProxy()->GetLastState();
   command_buffer_metrics::UmaRecordContextLost(context_type_, state.error,
                                                state.context_lost_reason);
 }
 
 void ContextProviderCommandBuffer::SetLostContextCallback(
     const LostContextCallback& lost_context_callback) {
   DCHECK(context_thread_checker_.CalledOnValidThread());
   DCHECK(lost_context_callback_.is_null() ||
          lost_context_callback.is_null());
   lost_context_callback_ = lost_context_callback;
 }
 
 }  // namespace content