Make Mac swap code like other platforms

content/browser/renderer_host/compositor_impl_android.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_COMPOSITOR_IMPL_ANDROID_H_
 #define CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_IMPL_ANDROID_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 20 matching lines @@
 struct ANativeWindow;
 
 namespace cc {
 class Layer;
 class LayerTreeHost;
 class OnscreenDisplayClient;
 class SurfaceIdAllocator;
 class SurfaceManager;
 }
 
+namespace gpu {
+struct GpuProcessHostedCALayerTreeParamsMac;
+}

[piman, 2016/05/09 16:23:59]

nit: doesn't look like it's used here.

[ccameron, 2016/05/09 18:40:36]

You're right -- it can go down into the .cc file.

+
 namespace content {
 class CompositorClient;
 
 // -----------------------------------------------------------------------------
 // Browser-side compositor that manages a tree of content and UI layers.
 // -----------------------------------------------------------------------------
 class CONTENT_EXPORT CompositorImpl
     : public Compositor,
       public cc::LayerTreeHostClient,
       public cc::LayerTreeHostSingleThreadClient,
@@ skipping 117 matching lines @@
   gpu::Capabilities gpu_capabilities_;
   bool needs_begin_frames_;
   base::WeakPtrFactory<CompositorImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CompositorImpl);
 };
 
 } // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_COMPOSITOR_IMPL_ANDROID_H_