Move DIP translation from ui/aura to ui/compositor

ash/accelerators/accelerator_controller.cc

Index: ash/accelerators/accelerator_controller.cc
diff --git a/ash/accelerators/accelerator_controller.cc b/ash/accelerators/accelerator_controller.cc
index f8782ea178f98fcddb01f759836e450eef0cafdf..b6ce065455847fdcfcee09937f7393dc3d1ede5f 100644
--- a/ash/accelerators/accelerator_controller.cc
+++ b/ash/accelerators/accelerator_controller.cc
@@ -513,12 +513,15 @@ bool AcceleratorController::AcceleratorPressed(
       return HandlePrintLayerHierarchy();
     case PRINT_WINDOW_HIERARCHY:
       return HandlePrintWindowHierarchy();
-    case ADD_REMOVE_MONITOR:
+    case MONITOR_ADD_REMOVE:
       internal::MultiMonitorManager::AddRemoveMonitor();
       return true;
-    case CYCLE_MONITOR:
+    case MONITOR_CYCLE:
       internal::MultiMonitorManager::CycleMonitor();
       return true;
+    case MONITOR_TOGGLE_SCALE:
+      internal::MultiMonitorManager::ToggleMonitorScale();
+      return true;
 #endif
     default:
       NOTREACHED() << "Unhandled action " << it->second;