gpu: Reuse transfer buffers more aggresively

gpu/command_buffer/service/async_pixel_transfer_manager_share_group.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_share_group.h"
 
 #include <list>
 
 #include "base/bind.h"
 #include "base/debug/trace_event.h"
@@ skipping 518 matching lines @@
       texture_binder.reset(new gfx::ScopedTextureBinder(GL_TEXTURE_2D, 0));
 
     // Used to set tex info from the gles2 cmd decoder once upload has
     // finished (it'll bind the texture and call a callback).
     delegate->BindTransfer();
 
     shared_state_.pending_allocations.pop_front();
   }
 }
 
+void AsyncPixelTransferManagerShareGroup::AsyncRun(
+    const base::Closure& callback) {
+  transfer_message_loop_proxy()->PostTask(FROM_HERE, callback);
+}
+
 void AsyncPixelTransferManagerShareGroup::AsyncNotifyCompletion(
     const AsyncMemoryParams& mem_params,
     AsyncPixelTransferCompletionObserver* observer) {
   DCHECK(mem_params.shared_memory);
   DCHECK_LE(mem_params.shm_data_offset + mem_params.shm_data_size,
             mem_params.shm_size);
   // Post a PerformNotifyCompletion task to the upload thread. This task
   // will run after all async transfers are complete.
-  transfer_message_loop_proxy()->PostTask(
-      FROM_HERE,
+  AsyncRun(
       base::Bind(&PerformNotifyCompletion,
                  mem_params,
                  base::Owned(
                      new ScopedSafeSharedMemory(safe_shared_memory_pool(),
                                                 mem_params.shared_memory,
                                                 mem_params.shm_size)),
                  make_scoped_refptr(observer)));
 }
 
 uint32 AsyncPixelTransferManagerShareGroup::GetTextureUploadCount() {
@@ skipping 16 matching lines @@
 
 AsyncPixelTransferDelegate*
 AsyncPixelTransferManagerShareGroup::CreatePixelTransferDelegateImpl(
     gles2::TextureRef* ref,
     const AsyncTexImage2DParams& define_params) {
   return new AsyncPixelTransferDelegateShareGroup(
       &shared_state_, ref->service_id(), define_params);
 }
 
 }  // namespace gpu