drm: Rename DRM_FORMAT_YV12 to DRM_FORMAT_YVU420.

ui/ozone/platform/drm/common/drm_util.cc

Index: ui/ozone/platform/drm/common/drm_util.cc
diff --git a/ui/ozone/platform/drm/common/drm_util.cc b/ui/ozone/platform/drm/common/drm_util.cc
index d4c7487b3f7bdd43281fbc8aa3d6cec52b15ebcd..c781e3238ca9ee8c1ff429b82cb26dcd5bea6b5d 100644
--- a/ui/ozone/platform/drm/common/drm_util.cc
+++ b/ui/ozone/platform/drm/common/drm_util.cc
@@ -17,11 +17,6 @@
 #include "base/memory/ptr_util.h"
 #include "ui/display/util/edid_parser.h"
 
-#if !defined(DRM_FORMAT_YV12)
-// TODO(dcastagna): after libdrm has this definition, remove it.
-#define DRM_FORMAT_YV12 fourcc_code('Y', 'V', '1', '2')
-#endif
-
 namespace ui {
 
 namespace {
@@ -384,7 +379,7 @@ int GetFourCCFormatFromBufferFormat(gfx::BufferFormat format) {
     case gfx::BufferFormat::UYVY_422:
       return DRM_FORMAT_UYVY;
     case gfx::BufferFormat::YVU_420:
-      return DRM_FORMAT_YV12;
+      return DRM_FORMAT_YVU420;
     case gfx::BufferFormat::YUV_420_BIPLANAR:
       return DRM_FORMAT_NV12;
     default:
@@ -413,7 +408,7 @@ gfx::BufferFormat GetBufferFormatFromFourCCFormat(int format) {
       return gfx::BufferFormat::UYVY_422;
     case DRM_FORMAT_NV12:
       return gfx::BufferFormat::YUV_420_BIPLANAR;
-    case DRM_FORMAT_YV12:
+    case DRM_FORMAT_YVU420:
       return gfx::BufferFormat::YVU_420;
     default:
       NOTREACHED();