Add IPCs for ash display shortcuts.

services/ui/display/screen_manager_ozone.h

Index: services/ui/display/screen_manager_ozone.h
diff --git a/services/ui/display/screen_manager_ozone.h b/services/ui/display/screen_manager_ozone.h
index 0b4011b8eb4fb05b7a901cc197132bfabbb383ec..57ca0af8cc3533f236b5cd61af17c4fa8d3fbdd0 100644
--- a/services/ui/display/screen_manager_ozone.h
+++ b/services/ui/display/screen_manager_ozone.h
@@ -51,7 +51,12 @@ class ScreenManagerOzone
   void ToggleDisplayResolution() override;
 
   // mojom::DisplayController:
+  void RotateCurrentDisplay() override;
   void SwapPrimaryDisplay() override;
+  void ToggleMirrorMode() override;
+  void ZoomInternalDisplayUp() override;
+  void ZoomInternalDisplayDown() override;
+  void ResetInternalDisplayZoom() override;
   void SetDisplayWorkArea(int64_t display_id,
                           const gfx::Size& size,
                           const gfx::Insets& insets) override;