[Ozone] Enables overlay render format setting path and by default use UYVY

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 eb98ea0044ccb972fab9e9357dda4bf1c2f93137..00d43337baa862c54daf040dca7ade2d647acc63 100644
--- a/ui/ozone/platform/drm/common/drm_util.cc
+++ b/ui/ozone/platform/drm/common/drm_util.cc
@@ -277,10 +277,25 @@ int GetFourCCFormatFromBufferFormat(gfx::BufferFormat format) {
       return DRM_FORMAT_ARGB8888;
     case gfx::BufferFormat::BGRX_8888:
       return DRM_FORMAT_XRGB8888;
+    case gfx::BufferFormat::UYVY_422:
+      return DRM_FORMAT_UYVY;
     default:
       NOTREACHED();
       return 0;
   }
 }
 
+gfx::BufferFormat GetBufferFormatFromFourCCFormat(int format) {
+  switch (format) {
+    case DRM_FORMAT_ARGB8888:
+      return gfx::BufferFormat::BGRA_8888;
+    case DRM_FORMAT_XRGB8888:
+      return gfx::BufferFormat::BGRX_8888;
+    case DRM_FORMAT_UYVY:
+      return gfx::BufferFormat::UYVY_422;
+    default:
+      NOTREACHED();
+      return gfx::BufferFormat::LAST;

[spang, 2015/11/10 15:46:18]

same here, although this is not supposed to be reachable I think it is odd to
use LAST.

[william.xie1, 2015/11/10 16:07:56]

Done.

+  }
+}
 }  // namespace ui