Lock Rotation when screen is manually rotated

ash/wm/maximize_mode/maximize_mode_controller.h

Index: ash/wm/maximize_mode/maximize_mode_controller.h
diff --git a/ash/wm/maximize_mode/maximize_mode_controller.h b/ash/wm/maximize_mode/maximize_mode_controller.h
index 02778a7136051cff6e1918a9673bc25905a2e165..86e5acaa63d03122ef42bf6164c13f7eda46fd7d 100644
--- a/ash/wm/maximize_mode/maximize_mode_controller.h
+++ b/ash/wm/maximize_mode/maximize_mode_controller.h
@@ -48,6 +48,14 @@ class ASH_EXPORT MaximizeModeController : public AccelerometerObserver {
   // screen.
   void HandleScreenRotation(const gfx::Vector3dF& lid);
 
+  // Enables MaximizeModeWindowManager, and determines the current state of
+  // rotation lock.
+  void EnterMaximizeMode();
+
+  // Removes MaximizeModeWindowManager and resets the display rotation if there
+  // is no rotation lock.
+  void LeaveMaximizeMode();
+
   // An event handler which traps mouse and keyboard events while maximize
   // mode is engaged.
   scoped_ptr<MaximizeModeEventBlocker> event_blocker_;