[Ozone] Add default case otherwise compiler complains about missing return

content/browser/compositor/overlay_candidate_validator_ozone.cc

Index: content/browser/compositor/overlay_candidate_validator_ozone.cc
diff --git a/content/browser/compositor/overlay_candidate_validator_ozone.cc b/content/browser/compositor/overlay_candidate_validator_ozone.cc
index 367e7761461d07fc84632e43d5fd90cd4b3aed27..91966bc1b50a6d6cfbff9d1ea0807382a273c545 100644
--- a/content/browser/compositor/overlay_candidate_validator_ozone.cc
+++ b/content/browser/compositor/overlay_candidate_validator_ozone.cc
@@ -17,10 +17,10 @@ static gfx::SurfaceFactoryOzone::BufferFormat GetOzoneFormat(
     case cc::BGRA_8888:
     case cc::LUMINANCE_8:
     case cc::RGB_565:
-    case cc::ETC1: {
+    case cc::ETC1:
+    default:

[danakj, 2014/04/03 14:25:34]

instead of default, which will take away compile-time checks for enum coverage,
how about just move the NOTREACHED/return out of the switch statement to below
it?

[dnicoara, 2014/04/03 14:34:34]

Done.

       NOTREACHED();
       return gfx::SurfaceFactoryOzone::UNKNOWN;
-    }
   }
 }