cc: Add DEFINE_ENUM macro.

cc/resources/raster_mode.h

 // Copyright 2013 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.
 
 #ifndef CC_RESOURCES_RASTER_MODE_H_
 #define CC_RESOURCES_RASTER_MODE_H_
 
 #include "base/memory/scoped_ptr.h"
+#include "cc/base/util.h"
 
 namespace base {
 class Value;
 }
 
 namespace cc {
 
 // Low quality implies no lcd test;
 // high quality implies lcd text.
 // Note that the order of these matters, from "better" to "worse" in terms of
 // quality.
-enum RasterMode {
-  HIGH_QUALITY_NO_LCD_RASTER_MODE = 0,
-  HIGH_QUALITY_RASTER_MODE = 1,
-  LOW_QUALITY_RASTER_MODE = 2,
-  NUM_RASTER_MODES = 3
-};
-
+DEFINE_ENUM(RasterMode,
+            HIGH_QUALITY_NO_LCD_RASTER_MODE,
+            HIGH_QUALITY_RASTER_MODE,
+            LOW_QUALITY_RASTER_MODE);
 scoped_ptr<base::Value> RasterModeAsValue(RasterMode mode);
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_RASTER_MODE_H_