gpu: Reuse transfer buffers more aggresively

gpu/command_buffer/service/async_pixel_transfer_manager_stub.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 "gpu/command_buffer/service/async_pixel_transfer_manager_stub.h"
 
 #include "gpu/command_buffer/service/async_pixel_transfer_delegate.h"
 
 namespace gpu {
 
@@ skipping 39 matching lines @@
 
 void AsyncPixelTransferDelegateStub::WaitForTransferCompletion() {}
 
 AsyncPixelTransferManagerStub::AsyncPixelTransferManagerStub() {}
 
 AsyncPixelTransferManagerStub::~AsyncPixelTransferManagerStub() {}
 
 void AsyncPixelTransferManagerStub::BindCompletedAsyncTransfers() {
 }
 
+void AsyncPixelTransferManagerStub::AsyncRunWhenCompleted(
+    base::Callback<void()> callback) {
+  callback.Run();
+}
+
 void AsyncPixelTransferManagerStub::AsyncNotifyCompletion(
     const AsyncMemoryParams& mem_params,
     AsyncPixelTransferCompletionObserver* observer) {
   observer->DidComplete(mem_params);
 }
 
 uint32 AsyncPixelTransferManagerStub::GetTextureUploadCount() {
   return 0;
 }
 
 base::TimeDelta AsyncPixelTransferManagerStub::GetTotalTextureUploadTime() {
   return base::TimeDelta();
 }
 
 void AsyncPixelTransferManagerStub::ProcessMorePendingTransfers() {
 }
 
 bool AsyncPixelTransferManagerStub::NeedsProcessMorePendingTransfers() {
   return false;
 }
 
 AsyncPixelTransferDelegate*
 AsyncPixelTransferManagerStub::CreatePixelTransferDelegateImpl(
     gles2::TextureRef* ref,
     const AsyncTexImage2DParams& define_params) {
   return new AsyncPixelTransferDelegateStub();
 }
 
 }  // namespace gpu