content: Some code cleanup related to shared memory allocation.

content/renderer/media/renderer_gpu_video_accelerator_factories.cc

 // Copyright 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/renderer/media/renderer_gpu_video_accelerator_factories.h"
 
 #include <GLES2/gl2.h>
 #include <GLES2/gl2ext.h>
 
 #include "base/bind.h"
@@ skipping 280 matching lines @@
 
 std::unique_ptr<media::GpuVideoAcceleratorFactories::ScopedGLContextLock>
 RendererGpuVideoAcceleratorFactories::GetGLContextLock() {
   if (CheckContextLost())
     return nullptr;
   return base::MakeUnique<ScopedGLContextLockImpl>(context_provider_);
 }
 
 std::unique_ptr<base::SharedMemory>
 RendererGpuVideoAcceleratorFactories::CreateSharedMemory(size_t size) {
-  std::unique_ptr<base::SharedMemory> mem(ChildThreadImpl::AllocateSharedMemory(
-      size, thread_safe_sender_.get(), nullptr));
+  std::unique_ptr<base::SharedMemory> mem(
+      ChildThreadImpl::AllocateSharedMemory(size));
   if (mem && !mem->Map(size))
     return nullptr;
   return mem;
 }
 
 scoped_refptr<base::SingleThreadTaskRunner>
 RendererGpuVideoAcceleratorFactories::GetTaskRunner() {
   return task_runner_;
 }
 
@@ skipping 18 matching lines @@
   context_provider_refptr_ = nullptr;
 }
 
 scoped_refptr<ContextProviderCommandBuffer>
 RendererGpuVideoAcceleratorFactories::ContextProviderMainThread() {
   DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
   return context_provider_refptr_;
 }
 
 }  // namespace content