cc: Move WebCompositorOutputSurface and related classes into cc/

cc/layer_tree_host_client.h

Index: cc/layer_tree_host_client.h
diff --git a/cc/layer_tree_host_client.h b/cc/layer_tree_host_client.h
index ad2844339e3c735aa1d0a59ae325323719ba6a2c..6657f59a8f268e8e7e4004810d31d3a327f28e41 100644
--- a/cc/layer_tree_host_client.h
+++ b/cc/layer_tree_host_client.h
@@ -11,13 +11,10 @@ namespace gfx {
 class Vector2d;
 }
 
-namespace WebKit {
-class WebCompositorOutputSurface;
-}
-
 namespace cc {
 class FontAtlas;
 class InputHandler;
+class OutputSurface;
 
 class LayerTreeHostClient {
 public:
@@ -27,7 +24,7 @@ public:
     virtual void animate(double frameBeginTime) = 0;
     virtual void layout() = 0;
     virtual void applyScrollAndScale(gfx::Vector2d scrollDelta, float pageScale) = 0;
-    virtual scoped_ptr<WebKit::WebCompositorOutputSurface> createOutputSurface() = 0;
+    virtual scoped_ptr<OutputSurface> createOutputSurface() = 0;
     virtual void didRecreateOutputSurface(bool success) = 0;
     virtual scoped_ptr<InputHandler> createInputHandler() = 0;
     virtual void willCommit() = 0;