Change the video color space default.

media/base/video_decoder_config.cc

Index: media/base/video_decoder_config.cc
diff --git a/media/base/video_decoder_config.cc b/media/base/video_decoder_config.cc
index 8825e2d615dad96440497fed74f27c236d9c365e..b4802f8b50c74a77d015cb586de7c5366309768b 100644
--- a/media/base/video_decoder_config.cc
+++ b/media/base/video_decoder_config.cc
@@ -9,6 +9,18 @@
 
 namespace media {
 
+VideoFrame::ColorSpace VideoDecoderConfig::DefaultMseColorSpace() {
+  return VideoFrame::COLOR_SPACE_HD_REC709;
+}
+
+VideoFrame::ColorSpace VideoDecoderConfig::DefaultSrcColorSpace(
+    const gfx::Size& natural_size) {
+  if (natural_size.height() < 720)
+    return VideoFrame::COLOR_SPACE_SD_REC601;
+  else
+    return VideoFrame::COLOR_SPACE_HD_REC709;
+}
+
 VideoDecoderConfig::VideoDecoderConfig()
     : codec_(kUnknownVideoCodec),
       profile_(VIDEO_CODEC_PROFILE_UNKNOWN),
@@ -19,13 +31,14 @@ VideoDecoderConfig::VideoDecoderConfig()
 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,
                                        const uint8* extra_data,
                                        size_t extra_data_size,
                                        bool is_encrypted) {
-  Initialize(codec, profile, format, VideoFrame::COLOR_SPACE_UNSPECIFIED,
+  Initialize(codec, profile, format, color_space,
              coded_size, visible_rect, natural_size, extra_data,
              extra_data_size, is_encrypted, true);
 }
@@ -87,6 +100,7 @@ void VideoDecoderConfig::Initialize(VideoCodec codec,
   codec_ = codec;
   profile_ = profile;
   format_ = format;
+  color_space_ = color_space;
   coded_size_ = coded_size;
   visible_rect_ = visible_rect;
   natural_size_ = natural_size;
@@ -169,6 +183,10 @@ VideoFrame::Format VideoDecoderConfig::format() const {
   return format_;
 }
 
+VideoFrame::ColorSpace VideoDecoderConfig::color_space() const {
+  return color_space_;
+}
+
 gfx::Size VideoDecoderConfig::coded_size() const {
   return coded_size_;
 }