Reland: Change the video color space default.

media/mojo/interfaces/media_types.mojom

Index: media/mojo/interfaces/media_types.mojom
diff --git a/media/mojo/interfaces/media_types.mojom b/media/mojo/interfaces/media_types.mojom
index 13f1ce23be81e97474ee64804608832faf392be6..b4f41f1b3e07eaa46c2e1b1f9a8ce1eea0c7ad57 100644
--- a/media/mojo/interfaces/media_types.mojom
+++ b/media/mojo/interfaces/media_types.mojom
@@ -90,7 +90,7 @@ enum SampleFormat {
 };
 
 // See media/base/video_types.h for descriptions.
-// Kept in sync with media::VideoFrame::Format via static_asserts.
+// Kept in sync with media::VideoPixelFormat via static_asserts.
 enum VideoFormat {
   UNKNOWN = 0,
   YV12,
@@ -104,6 +104,15 @@ enum VideoFormat {
   FORMAT_MAX = XRGB,
 };
 
+// Kept in sync with media::ColorSpace via static_asserts.
+enum ColorSpace {
+  UNSPECIFIED = 0,
+  JPEG = 1,
+  HD_REC709 = 2,
+  SD_REC601 = 3,
+  MAX = SD_REC601,
+};
+
 // See media/base/video_decoder_config.h for descriptions.
 // Kept in sync with media::VideoCodec via static_asserts.
 enum VideoCodec {
@@ -164,6 +173,7 @@ struct VideoDecoderConfig {
   VideoCodec codec;
   VideoCodecProfile profile;
   VideoFormat format;
+  ColorSpace color_space;
   Size coded_size;
   Rect visible_rect;
   Size natural_size;