Add plumbing for video pixel formats with JPEG color range.

media/ffmpeg/ffmpeg_common.cc

Index: media/ffmpeg/ffmpeg_common.cc
diff --git a/media/ffmpeg/ffmpeg_common.cc b/media/ffmpeg/ffmpeg_common.cc
index 905e8d9a9ee7ef01a1daada889499dec510a1c06..40696c690998ff2ea918010d092d614c35e2e63a 100644
--- a/media/ffmpeg/ffmpeg_common.cc
+++ b/media/ffmpeg/ffmpeg_common.cc
@@ -513,12 +513,10 @@ VideoFrame::Format PixelFormatToVideoFormat(PixelFormat pixel_format) {
   switch (pixel_format) {
     case PIX_FMT_YUV422P:
       return VideoFrame::YV16;
-    // TODO(scherkus): We should be paying attention to the color range of each
-    // format and scaling as appropriate when rendering. Regular YUV has a range
-    // of 16-239 where as YUVJ has a range of 0-255.
     case PIX_FMT_YUV420P:
-    case PIX_FMT_YUVJ420P:
       return VideoFrame::YV12;
+    case PIX_FMT_YUVJ420P:
+      return VideoFrame::YV12J;
     case PIX_FMT_YUVA420P:
       return VideoFrame::YV12A;
     default:
@@ -533,6 +531,8 @@ PixelFormat VideoFormatToPixelFormat(VideoFrame::Format video_format) {
       return PIX_FMT_YUV422P;
     case VideoFrame::YV12:
       return PIX_FMT_YUV420P;
+    case VideoFrame::YV12J:
+      return PIX_FMT_YUVJ420P;
     case VideoFrame::YV12A:
       return PIX_FMT_YUVA420P;
     default: