Cleanup SurfaceVisibility code.

cc/output/delegating_renderer.cc

 // Copyright 2012 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/output/delegating_renderer.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 96 matching lines @@
 
 void DelegatingRenderer::DidChangeVisibility() {
   ContextProvider* context_provider = output_surface_->context_provider();
   if (!visible()) {
     TRACE_EVENT0("cc", "DelegatingRenderer::SetVisible dropping resources");
     if (context_provider) {
       context_provider->DeleteCachedResources();
       context_provider->ContextGL()->Flush();
     }
   }
-  // We loop visibility to the GPU process, since that's what manages memory.
-  // That will allow it to feed us with memory allocations that we can act
-  // upon.
   if (context_provider) {
-    context_provider->ContextSupport()->SetSurfaceVisible(visible());
-
     // If we are not visible, we ask the context to aggressively free resources.
     context_provider->ContextSupport()->SetAggressivelyFreeResources(
         !visible());
   }
 }
 
 }  // namespace cc