Adding overview / layer framework to Activities so that unloaded / sleeping activities can be shown…

athena/test/sample_activity.h

Index: athena/test/sample_activity.h
diff --git a/athena/test/sample_activity.h b/athena/test/sample_activity.h
index 8658e0b7cc0a228c7784fe2465f031b5f228ec20..b0aaecad1ee95ac40d81fc5efbd28781cd678507 100644
--- a/athena/test/sample_activity.h
+++ b/athena/test/sample_activity.h
@@ -7,7 +7,6 @@
 
 #include "athena/activity/public/activity.h"
 #include "athena/activity/public/activity_view_model.h"
-#include "base/memory/scoped_ptr.h"
 #include "ui/gfx/image/image_skia.h"
 
 namespace athena {
@@ -36,7 +35,6 @@ class SampleActivity : public Activity,
   virtual base::string16 GetTitle() const OVERRIDE;
   virtual bool UsesFrame() const OVERRIDE;
   virtual views::View* GetContentsView() OVERRIDE;
-  virtual void CreateOverviewModeImage() OVERRIDE;
   virtual gfx::ImageSkia GetOverviewModeImage() OVERRIDE;
   virtual void PrepareContentsForOverview() OVERRIDE;
   virtual void ResetContentsView() OVERRIDE;