Rotate screen in response to accelerator or device orientation sensors.

athena/screen/public/screen_manager.h

Index: athena/screen/public/screen_manager.h
diff --git a/athena/screen/public/screen_manager.h b/athena/screen/public/screen_manager.h
index 8a82f6c617272a0b59d7d527e61894dd5d3fcd4a..f3541ac8f59db82c72e8702ab86e57dc4367deb8 100644
--- a/athena/screen/public/screen_manager.h
+++ b/athena/screen/public/screen_manager.h
@@ -8,6 +8,7 @@
 #include <string>
 
 #include "athena/athena_export.h"
+#include "ui/gfx/display.h"
 
 namespace aura {
 class Window;
@@ -64,6 +65,10 @@ class ATHENA_EXPORT ScreenManager {
   // Sets the background image.
   virtual void SetBackgroundImage(const gfx::ImageSkia& image) = 0;
 
+  // Get/set screen rotation.
+  virtual gfx::Display::Rotation GetRotation() = 0;
+  virtual void SetRotation(gfx::Display::Rotation rotation) = 0;

[oshima, 2014/08/01 17:15:11]

this is ok for the time being, but we should extract ash's DisplayManager at
some point. 

can you file a bug and add TODO here?

[flackr, 2014/08/06 14:13:51]

Done.

+
   // Create a focus rules.
   // TODO(oshima): Make this virtual function.
   static wm::FocusRules* CreateFocusRules();