Revert 260177 "By keeping track of transfer buffer usage (both s..."

trunk/src/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 60 matching lines @@
   return base::TimeDelta();
 }
 
 void AsyncPixelTransferManagerStub::ProcessMorePendingTransfers() {
 }
 
 bool AsyncPixelTransferManagerStub::NeedsProcessMorePendingTransfers() {
   return false;
 }
 
-void AsyncPixelTransferManagerStub::WaitAllAsyncTexImage2D() {
-}
-
 AsyncPixelTransferDelegate*
 AsyncPixelTransferManagerStub::CreatePixelTransferDelegateImpl(
     gles2::TextureRef* ref,
     const AsyncTexImage2DParams& define_params) {
   return new AsyncPixelTransferDelegateStub();
 }
 
 }  // namespace gpu