12-bit vp9 video support

media/filters/ffmpeg_video_decoder.cc

Index: media/filters/ffmpeg_video_decoder.cc
diff --git a/media/filters/ffmpeg_video_decoder.cc b/media/filters/ffmpeg_video_decoder.cc
index 0dfd6a0bb7bb77915abbe858dc32d2f2bde2c139..05849f2dd83eb853f489be1b851e4d29a9a3213a 100644
--- a/media/filters/ffmpeg_video_decoder.cc
+++ b/media/filters/ffmpeg_video_decoder.cc
@@ -96,7 +96,8 @@ int FFmpegVideoDecoder::GetVideoBuffer(struct AVCodecContext* codec_context,
          format == PIXEL_FORMAT_YV24 || format == PIXEL_FORMAT_YUV420P9 ||
          format == PIXEL_FORMAT_YUV420P10 || format == PIXEL_FORMAT_YUV422P9 ||
          format == PIXEL_FORMAT_YUV422P10 || format == PIXEL_FORMAT_YUV444P9 ||
-         format == PIXEL_FORMAT_YUV444P10);
+         format == PIXEL_FORMAT_YUV444P10 || format == PIXEL_FORMAT_YUV420P12 ||
+         format == PIXEL_FORMAT_YUV422P12 || format == PIXEL_FORMAT_YUV444P12);
 
   gfx::Size size(codec_context->width, codec_context->height);
   const int ret = av_image_check_size(size.width(), size.height(), 0, NULL);