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 2deeb9738543b4a5ca90d216a9b2e77439eef9fa..f7ac61ed90514b7bb3ee32ed35149eb68f3e5ece 100644
--- a/ash/accelerators/accelerator_controller.cc
+++ b/ash/accelerators/accelerator_controller.cc
@@ -512,12 +512,15 @@ 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_SCALE:
+      internal::MultiMonitorManager::ScaleMonitor();
+      return true;
 #endif
     default:
       NOTREACHED() << "Unhandled action " << it->second;