Revert of Make lost context and error message callbacks on GpuControl go to client

blimp/client/feature/compositor/blimp_context_provider.cc

 // Copyright 2015 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 "blimp/client/feature/compositor/blimp_context_provider.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/lazy_instance.h"
 #include "gpu/command_buffer/client/gl_in_process_context.h"
@@ skipping 27 matching lines @@
   attribs_for_gles2.fail_if_major_perf_caveat = false;
   attribs_for_gles2.bind_generates_resource = false;
   attribs_for_gles2.context_type = gpu::gles2::CONTEXT_TYPE_OPENGLES2;
   attribs_for_gles2.lose_context_when_out_of_memory = true;
 
   context_.reset(gpu::GLInProcessContext::Create(
       nullptr /* service */, nullptr /* surface */, false /* is_offscreen */,
       widget, gfx::Size(1, 1), nullptr /* share_context */, attribs_for_gles2,
       gfx::PreferDiscreteGpu, gpu::GLInProcessContextSharedMemoryLimits(),
       gpu_memory_buffer_manager, nullptr /* memory_limits */));
-  context_->GetImplementation()->SetLostContextCallback(
+  context_->SetContextLostCallback(
       base::Bind(&BlimpContextProvider::OnLostContext, base::Unretained(this)));
 }
 
 BlimpContextProvider::~BlimpContextProvider() {
   DCHECK(main_thread_checker_.CalledOnValidThread() ||
          context_thread_checker_.CalledOnValidThread());
   if (gr_context_)
     gr_context_->releaseResourcesAndAbandonContext();
 }
 
@@ skipping 62 matching lines @@
 
 void BlimpContextProvider::SetLostContextCallback(
     const LostContextCallback& lost_context_callback) {
   DCHECK(context_thread_checker_.CalledOnValidThread());
   lost_context_callback_ = lost_context_callback;
 }
 
 void BlimpContextProvider::OnLostContext() {
   DCHECK(context_thread_checker_.CalledOnValidThread());
   if (!lost_context_callback_.is_null())
-    lost_context_callback_.Run();
+    base::ResetAndReturn(&lost_context_callback_).Run();
   if (gr_context_)
     gr_context_->abandonContext();
 }
 
 }  // namespace client
 }  // namespace blimp