ash: Use mojo LocaleNotificationController interface.

ash/common/wm_shell.h

Index: ash/common/wm_shell.h
diff --git a/ash/common/wm_shell.h b/ash/common/wm_shell.h
index c6d79223af4be922fcb710e55588198f06ec9d36..bb387eba633c09d321c5ef918ebf9d291d38e6d2 100644
--- a/ash/common/wm_shell.h
+++ b/ash/common/wm_shell.h
@@ -14,6 +14,7 @@
 #include "ash/common/media_delegate.h"
 #include "ash/common/metrics/gesture_action_type.h"
 #include "ash/common/metrics/user_metrics_action.h"
+#include "ash/common/system/locale/locale_notification_controller.h"

[msw, 2016/10/14 01:46:29]

nit: use a fwd decl instead

 #include "ash/common/wm/lock_state_observer.h"
 #include "base/observer_list.h"
 #include "ui/base/ui_base_types.h"
@@ -128,6 +129,10 @@ class ASH_EXPORT WmShell {
 
   KeyboardUI* keyboard_ui() { return keyboard_ui_.get(); }
 
+  LocaleNotificationController* locale_notification_controller() {
+    return locale_notification_controller_.get();
+  }
+
   MaximizeModeController* maximize_mode_controller() {
     return maximize_mode_controller_.get();
   }
@@ -469,6 +474,7 @@ class ASH_EXPORT WmShell {
   std::unique_ptr<BrightnessControlDelegate> brightness_control_delegate_;
   std::unique_ptr<FocusCycler> focus_cycler_;
   std::unique_ptr<ImmersiveContextAsh> immersive_context_;
+  std::unique_ptr<LocaleNotificationController> locale_notification_controller_;

[msw, 2016/10/14 01:46:29]

nit: abc order (after KeyboardUI)

   std::unique_ptr<KeyboardBrightnessControlDelegate>
       keyboard_brightness_control_delegate_;
   std::unique_ptr<KeyboardUI> keyboard_ui_;