Cleanup GpuMemoryBuffer

content/browser/gpu/gpu_memory_buffer_factory_host_impl.cc

 // Copyright (c) 2014 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/browser/gpu/gpu_memory_buffer_factory_host_impl.h"
 
 #include "base/bind.h"
 #include "content/browser/gpu/gpu_process_host.h"
 #include "content/public/browser/browser_thread.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 
 namespace content {
 
 GpuMemoryBufferFactoryHostImpl::GpuMemoryBufferFactoryHostImpl()
     : gpu_host_id_(0), next_create_gpu_memory_buffer_request_id_(0) {
 }
 
 GpuMemoryBufferFactoryHostImpl::~GpuMemoryBufferFactoryHostImpl() {
 }
 
 void GpuMemoryBufferFactoryHostImpl::CreateGpuMemoryBuffer(
     const gfx::GpuMemoryBufferHandle& handle,
     const gfx::Size& size,
     gfx::GpuMemoryBuffer::Format format,
     gfx::GpuMemoryBuffer::Usage usage,
     const CreateGpuMemoryBufferCallback& callback) {
+  BrowserThread::PostTask(
+      BrowserThread::IO,
+      FROM_HERE,
+      base::Bind(&GpuMemoryBufferFactoryHostImpl::CreateGpuMemoryBufferOnIO,
+                 base::Unretained(this),
+                 handle,
+                 size,
+                 format,
+                 usage,
+                 callback));
+}
+
+void GpuMemoryBufferFactoryHostImpl::CreateGpuMemoryBufferOnIO(
+    const gfx::GpuMemoryBufferHandle& handle,
+    const gfx::Size& size,
+    gfx::GpuMemoryBuffer::Format format,
+    gfx::GpuMemoryBuffer::Usage usage,
+    const CreateGpuMemoryBufferCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   GpuProcessHost* host = GpuProcessHost::FromID(gpu_host_id_);
   if (!host) {
     callback.Run(gfx::GpuMemoryBufferHandle());
     return;
   }
 
   uint32 request_id = next_create_gpu_memory_buffer_request_id_++;
   create_gpu_memory_buffer_requests_[request_id] = callback;
 
   host->CreateGpuMemoryBuffer(
       handle,
       size,
       format,
       usage,
       base::Bind(&GpuMemoryBufferFactoryHostImpl::OnGpuMemoryBufferCreated,
                  base::Unretained(this),
                  request_id));
 }
 
 void GpuMemoryBufferFactoryHostImpl::DestroyGpuMemoryBuffer(
     const gfx::GpuMemoryBufferHandle& handle,
     int32 sync_point) {
+  BrowserThread::PostTask(
+      BrowserThread::IO,
+      FROM_HERE,
+      base::Bind(&GpuMemoryBufferFactoryHostImpl::DestroyGpuMemoryBufferOnIO,
+                 base::Unretained(this),
+                 handle,
+                 sync_point));
+}
+
+void GpuMemoryBufferFactoryHostImpl::DestroyGpuMemoryBufferOnIO(
+    const gfx::GpuMemoryBufferHandle& handle,
+    int32 sync_point) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   GpuProcessHost* host = GpuProcessHost::FromID(gpu_host_id_);
   if (!host)
     return;
 
   host->DestroyGpuMemoryBuffer(handle, sync_point);
 }
 
 void GpuMemoryBufferFactoryHostImpl::OnGpuMemoryBufferCreated(
     uint32 request_id,
     const gfx::GpuMemoryBufferHandle& handle) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   CreateGpuMemoryBufferCallbackMap::iterator iter =
       create_gpu_memory_buffer_requests_.find(request_id);
   DCHECK(iter != create_gpu_memory_buffer_requests_.end());
   iter->second.Run(handle);
   create_gpu_memory_buffer_requests_.erase(iter);
 }
 
 }  // namespace content