chromeos: Implement power button animations for Aura.

ash/wm/shadow_controller.h

Index: ash/wm/shadow_controller.h
diff --git a/ash/wm/shadow_controller.h b/ash/wm/shadow_controller.h
index 0613dd734d0946aea85bd284050bc4941c3e6c9a..22770204d52741d2eb2bb99ee5da8d633d6463c4 100644
--- a/ash/wm/shadow_controller.h
+++ b/ash/wm/shadow_controller.h
@@ -31,7 +31,7 @@ class Shadow;
 // shadows as needed.
 class ASH_EXPORT ShadowController : public aura::RootWindowObserver,
                                            public aura::WindowObserver {
-public:
+ public:
   class TestApi {
    public:
     explicit TestApi(ShadowController* controller) : controller_(controller) {}
@@ -83,7 +83,7 @@ public:
   DISALLOW_COPY_AND_ASSIGN(ShadowController);
 };
 
-}  // namepsace internal
-}  // namepsace ash
+}  // namespace internal
+}  // namespace ash
 
 #endif  // ASH_WM_SHADOW_CONTROLLER_H_