Remove parts of //cc we aren't using

cc/output/overlay_strategy_single_on_top.h

Index: cc/output/overlay_strategy_single_on_top.h
diff --git a/cc/output/overlay_strategy_single_on_top.h b/cc/output/overlay_strategy_single_on_top.h
index a3fec0a66e38a4d9019ab193c7eb445bcee7170f..2b261af6bc96881466b6a9e2aa01bc378a57afe3 100644
--- a/cc/output/overlay_strategy_single_on_top.h
+++ b/cc/output/overlay_strategy_single_on_top.h
@@ -7,7 +7,6 @@
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
-#include "cc/base/cc_export.h"
 #include "cc/output/overlay_candidate.h"
 #include "cc/output/overlay_processor.h"
 #include "cc/quads/render_pass.h"
@@ -17,7 +16,7 @@ class OverlayCandidateValidator;
 class StreamVideoDrawQuad;
 class TextureDrawQuad;
 
-class CC_EXPORT OverlayStrategySingleOnTop : public OverlayProcessor::Strategy {
+class OverlayStrategySingleOnTop : public OverlayProcessor::Strategy {
  public:
   OverlayStrategySingleOnTop(OverlayCandidateValidator* capability_checker,
                              ResourceProvider* resource_provider);