Chromium build failed with heap leak checker, or configured with

media/video/ffmpeg_video_decode_engine.cc

Index: media/video/ffmpeg_video_decode_engine.cc
diff --git a/media/video/ffmpeg_video_decode_engine.cc b/media/video/ffmpeg_video_decode_engine.cc
index 70b21a1d4209e2c91068544c8efb7a0c8cf9a877..3b29906800b2cee023a17a6e86057498aeb51182 100644
--- a/media/video/ffmpeg_video_decode_engine.cc
+++ b/media/video/ffmpeg_video_decode_engine.cc
@@ -359,15 +359,14 @@ VideoFrame::Format FFmpegVideoDecodeEngine::GetSurfaceFormat() const {
     case PIX_FMT_YUV420P:
     case PIX_FMT_YUVJ420P:
       return VideoFrame::YV12;
-      break;
     case PIX_FMT_YUV422P:
     case PIX_FMT_YUVJ422P:
       return VideoFrame::YV16;
-      break;
     default:
       // TODO(scherkus): More formats here?
-      return VideoFrame::INVALID;
+      break;
   }
+  return VideoFrame::INVALID;
 }
 
 }  // namespace media