Additions to Activities to allow resource management

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 86253a8f3367eaa24b95c9d22945bc2df9cd375b..c8bd98901b0b9401e813205f34bd469c303d1717 100644
--- a/athena/test/sample_activity.h
+++ b/athena/test/sample_activity.h
@@ -8,6 +8,7 @@
 #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 {
 namespace test {
@@ -23,6 +24,10 @@ class SampleActivity : public Activity,
  private:
   // athena::Activity:
   virtual athena::ActivityViewModel* GetActivityViewModel() OVERRIDE;
+  virtual void SetCurrentState(Activity::ActivityState state) OVERRIDE;
+  virtual ActivityState GetCurrentState() OVERRIDE;
+  virtual bool IsVisible() OVERRIDE;
+  virtual ActivityMediaState GetMediaState() OVERRIDE;
 
   // athena::ActivityViewModel:
   virtual void Init() OVERRIDE;
@@ -30,12 +35,20 @@ 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;
 
   SkColor color_;
   SkColor contents_color_;
   base::string16 title_;
   views::View* contents_view_;
 
+  // The current state for this activity.
+  ActivityState current_state_;
+
+  // The image which will be used in overview mode.
+  gfx::ImageSkia overview_mode_image_;
+
   DISALLOW_COPY_AND_ASSIGN(SampleActivity);
 };