Clean up GPU back-pressure with remote CALayers

content/common/gpu/image_transport_surface_iosurface_mac.cc

 // Copyright 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/common/gpu/image_transport_surface_iosurface_mac.h"
 
 #include "content/common/gpu/gpu_messages.h"
 #include "content/common/gpu/surface_handle_types_mac.h"
 
 namespace content {
@@ skipping 106 matching lines @@
   transport_surface_->SendSwapBuffers(
       SurfaceHandleFromIOSurfaceID(io_surface_id_), size, scale_factor);
 }
 
 void IOSurfaceStorageProvider::WillWriteToBackbuffer() {
 }
 
 void IOSurfaceStorageProvider::DiscardBackbuffer() {
 }
 
-void IOSurfaceStorageProvider::SwapBuffersAckedByBrowser() {
+void IOSurfaceStorageProvider::SwapBuffersAckedByBrowser(
+    bool disable_throttling) {
   DCHECK(!pending_swapped_surfaces_.empty());
   pending_swapped_surfaces_.pop_front();
 }
 
 }  //  namespace content