Change the video color space default.

media/base/video_decoder_config.h

Index: media/base/video_decoder_config.h
diff --git a/media/base/video_decoder_config.h b/media/base/video_decoder_config.h
index 00de84e2fb56bc02e500b34d7b467806a0b1883e..63881bb7b61395bed9e16e0988d2a9b815521461 100644
--- a/media/base/video_decoder_config.h
+++ b/media/base/video_decoder_config.h
@@ -69,6 +69,12 @@ enum VideoCodecProfile {
 
 class MEDIA_EXPORT VideoDecoderConfig {
  public:
+  // Get the color space defaults. The default for src playbacks depends on
+  // whether the video is SD or HD.
+  static VideoFrame::ColorSpace DefaultMseColorSpace();

[DaleCurtis, 2015/07/06 22:36:14]

How about just DefaultColorSpace() and MSE can hard code somewhere in MSE code?
We don't want to tie this class to a MSE/src name.

Actually SrcColorSpace is only used in one place, why not hard code it there
instead?

[watk, 2015/07/06 23:15:58]

Done.

+  static VideoFrame::ColorSpace DefaultSrcColorSpace(
+      const gfx::Size& natural_size);
+
   // Constructs an uninitialized object. Clients should call Initialize() with
   // appropriate values before using.
   VideoDecoderConfig();
@@ -78,6 +84,7 @@ class MEDIA_EXPORT VideoDecoderConfig {
   VideoDecoderConfig(VideoCodec codec,
                      VideoCodecProfile profile,
                      VideoFrame::Format format,
+                     VideoFrame::ColorSpace color_space,
                      const gfx::Size& coded_size,
                      const gfx::Rect& visible_rect,
                      const gfx::Size& natural_size,
@@ -118,6 +125,11 @@ class MEDIA_EXPORT VideoDecoderConfig {
   // Video format used to determine YUV buffer sizes.
   VideoFrame::Format format() const;
 
+  // Default color space of the decoded frames. Decoders should output frames
+  // tagged with this color space unless they find a different value in the
+  // bitstream.
+  VideoFrame::ColorSpace color_space() const;
+
   // Width and height of video frame immediately post-decode. Not all pixels
   // in this region are valid.
   gfx::Size coded_size() const;
@@ -144,6 +156,7 @@ class MEDIA_EXPORT VideoDecoderConfig {
   VideoCodecProfile profile_;
 
   VideoFrame::Format format_;
+  VideoFrame::ColorSpace color_space_;
 
   gfx::Size coded_size_;
   gfx::Rect visible_rect_;