Remove parts of //cc we aren't using

cc/surfaces/onscreen_display_client.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 "cc/surfaces/onscreen_display_client.h"
 
 #include "base/trace_event/trace_event.h"
 #include "cc/output/output_surface.h"
 #include "cc/surfaces/surface_display_output_surface.h"
 #include "cc/surfaces/surface_factory.h"
@@ skipping 71 matching lines @@
 }
 
 void OnscreenDisplayClient::DidSwapBuffersComplete() {
   pending_frames_--;
   if ((pending_frames_ < display_->GetMaxFramesPending()) && deferred_draw_) {
     deferred_draw_ = false;
     ScheduleDraw();
   }
 }
 
-void OnscreenDisplayClient::SetMemoryPolicy(const ManagedMemoryPolicy& policy) {
-  surface_display_output_surface_->SetMemoryPolicy(policy);
-}
-
 }  // namespace cc