Add IPCs for ash display shortcuts.

services/ui/display/screen_manager_ozone.cc

Index: services/ui/display/screen_manager_ozone.cc
diff --git a/services/ui/display/screen_manager_ozone.cc b/services/ui/display/screen_manager_ozone.cc
index 4fc61814da194f5593291ec145be3e06bfbd64b8..fc2d4bc1ef90332ec5cb57209e2c1f110021ceaa 100644
--- a/services/ui/display/screen_manager_ozone.cc
+++ b/services/ui/display/screen_manager_ozone.cc
@@ -147,6 +147,22 @@ void ScreenManagerOzone::ToggleDisplayResolution() {
   display_configurator_.OnConfigurationChanged();
 }
 
+void ScreenManagerOzone::IncreaseInternalDisplayZoom() {
+  NOTIMPLEMENTED();
+}
+
+void ScreenManagerOzone::DecreaseInternalDisplayZoom() {
+  NOTIMPLEMENTED();
+}
+
+void ScreenManagerOzone::ResetInternalDisplayZoom() {
+  NOTIMPLEMENTED();
+}
+
+void ScreenManagerOzone::RotateCurrentDisplayCW() {
+  NOTIMPLEMENTED();
+}
+
 void ScreenManagerOzone::SwapPrimaryDisplay() {
   const size_t num_displays = cached_displays_.size();
   if (num_displays <= 1)
@@ -171,6 +187,10 @@ void ScreenManagerOzone::SwapPrimaryDisplay() {
   delegate_->OnPrimaryDisplayChanged(primary_display_id_);
 }
 
+void ScreenManagerOzone::ToggleMirrorMode() {
+  NOTIMPLEMENTED();
+}
+
 void ScreenManagerOzone::SetDisplayWorkArea(int64_t display_id,
                                             const gfx::Size& size,
                                             const gfx::Insets& insets) {