Mac ÜC: Make resize smooth

content/browser/renderer_host/render_process_host_impl.h

 // Copyright (c) 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_
 
 #include <map>
 #include <queue>
 #include <string>
@@ skipping 277 matching lines @@
   void CreateMessageFilters();
 
   // Control message handlers.
   void OnShutdownRequest();
   void OnDumpHandlesDone();
   void SuddenTerminationChanged(bool enabled);
   void OnUserMetricsRecordAction(const std::string& action);
   void OnSavedPageAsMHTML(int job_id, int64 mhtml_file_size);
   void OnCloseACK(int old_route_id);
 
+#if defined(OS_MACOSX)
   // CompositorSurfaceBuffersSwapped handler when there's no RWH.
   void OnCompositorSurfaceBuffersSwappedNoHost(
       const ViewHostMsg_CompositorSurfaceBuffersSwapped_Params& params);
+#endif
 
   // Generates a command line to be used to spawn a renderer and appends the
   // results to |*command_line|.
   void AppendRendererCommandLine(base::CommandLine* command_line) const;
 
   // Copies applicable command line switches from the given |browser_cmd| line
   // flags to the output |renderer_cmd| line flags. Not all switches will be
   // copied over.
   void PropagateBrowserCommandLineToRenderer(
       const base::CommandLine& browser_cmd,
@@ skipping 150 matching lines @@
 #if defined(OS_MACOSX)
   base::ScopedCFTypeRef<IOSurfaceRef> last_io_surface_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(RenderProcessHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_BROWSER_RENDER_PROCESS_HOST_IMPL_H_