Add a flag to enable remote CoreAnimation API.

ui/base/ui_base_switches.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/base/ui_base_switches.h"
 
 namespace switches {
 
 #if defined(OS_MACOSX) && !defined(OS_IOS)
 // Disable use of CoreAnimation to draw on the Mac.
 const char kDisableCoreAnimation[] = "disable-core-animation";
+
+// Enable use of cross-process CALayers to display content directly from the
+// GPU process on Mac.
+const char kEnableRemoteCoreAnimation[] = "enable-remote-core-animation";
 #endif
 
 // Disables use of DWM composition for top level windows.
 const char kDisableDwmComposition[] = "disable-dwm-composition";
 
 // Disables an experimental focus manager to track text input clients.
 const char kDisableTextInputFocusManager[] = "disable-text-input-focus-manager";
 
 // Disables touch adjustment.
 const char kDisableTouchAdjustment[] = "disable-touch-adjustment";
@@ skipping 15 matching lines @@
 
 // The language file that we want to try to open. Of the form
 // language[-country] where language is the 2 letter code from ISO-639.
 const char kLang[] = "lang";
 
 // Disable ui::MessageBox. This is useful when running as part of scripts that
 // do not have a user interface.
 const char kNoMessageBox[] = "no-message-box";
 
 }  // namespace switches