Add accelerometer support property to Display.

ui/display/manager/display_manager.h

Index: ui/display/manager/display_manager.h
diff --git a/ui/display/manager/display_manager.h b/ui/display/manager/display_manager.h
index f8e6c9fe3467c6ce5f2ae8eec03ff410a7c5e3e5..8c28cbfd30ee9a5fd99a038bc02432f1561a363c 100644
--- a/ui/display/manager/display_manager.h
+++ b/ui/display/manager/display_manager.h
@@ -113,6 +113,10 @@ class DISPLAY_MANAGER_EXPORT DisplayManager
     configure_displays_ = configure_displays;
   }
 
+  void set_internal_display_has_accelerometer(bool has_accelerometer) {
+    internal_display_has_accelerometer_ = has_accelerometer;
+  }
+
   // Returns the display id of the first display in the outupt list.
   int64_t first_display_id() const { return first_display_id_; }
 
@@ -490,6 +494,8 @@ class DISPLAY_MANAGER_EXPORT DisplayManager
 
   bool unified_desktop_enabled_ = false;
 
+  bool internal_display_has_accelerometer_ = false;
+
   base::Closure created_mirror_window_;
 
   base::ObserverList<DisplayObserver> observers_;