Auto rotate on lid rotation changes.

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 f9919fa08d2af4a89446f0bf63600ad459d666b4..0ef1b9f6e7e668b92de0e4318e1742458188c760 100644
--- a/ash/wm/maximize_mode/maximize_mode_controller.h
+++ b/ash/wm/maximize_mode/maximize_mode_controller.h
@@ -12,7 +12,7 @@ namespace ash {
 
 // MaximizeModeController listens to accelerometer events and automatically
 // enters and exits maximize mode when the lid is opened beyond the triggering
-// angle.
+// angle and rotates the display to match the device when in maximize mode.
 class MaximizeModeController : public AccelerometerObserver {
  public:
   MaximizeModeController();
@@ -21,6 +21,15 @@ class MaximizeModeController : public AccelerometerObserver {
   virtual void OnAccelerometerUpdated(const gfx::Vector3dF& base,
                                       const gfx::Vector3dF& lid) OVERRIDE;
  private:
+  // Detect hinge rotation from |base| and |lid| accelerometers and
+  // automatically start / stop maximize mode.
+  void HandleHingeRotation(const gfx::Vector3dF& base,
+                           const gfx::Vector3dF& lid);
+
+  // Detect screen rotation from |lid| accelerometer and automatically rotate
+  // screen.
+  void HandleScreenRotation(const gfx::Vector3dF& lid);
+
   DISALLOW_COPY_AND_ASSIGN(MaximizeModeController);
 };