Attach color space information to hardware decoded NV12 video frames.

media/gpu/dxva_video_decode_accelerator_win.cc

Index: media/gpu/dxva_video_decode_accelerator_win.cc
diff --git a/media/gpu/dxva_video_decode_accelerator_win.cc b/media/gpu/dxva_video_decode_accelerator_win.cc
index 5f730e80d3eb6b5b3283a39b97254d6afdef1398..db29461c604af67d2f4bdcead0228c835b418793 100644
--- a/media/gpu/dxva_video_decode_accelerator_win.cc
+++ b/media/gpu/dxva_video_decode_accelerator_win.cc
@@ -458,6 +458,19 @@ bool H264ConfigChangeDetector::DetectConfig(const uint8_t* stream,
   return true;
 }
 
+gfx::ColorSpace H264ConfigChangeDetector::current_color_space() const {
+  // TODO(hubbe): Is using last_sps_id_ correct here?
+  const H264SPS* sps = parser_->GetSPS(last_sps_id_);
+  if (sps) {
+    return gfx::ColorSpace(
+        static_cast<gfx::ColorSpace::PrimaryID>(sps->primary_idc),
+        static_cast<gfx::ColorSpace::TransferID>(sps->transfer_idc),
+        static_cast<gfx::ColorSpace::MatrixID>(sps->matrix_idc),
+        sps->full_range ? gfx::ColorSpace::RangeID::FULL
+                        : gfx::ColorSpace::RangeID::LIMITED);
+  }
+  return gfx::ColorSpace();
+}
 
 DXVAVideoDecodeAccelerator::PendingSampleInfo::PendingSampleInfo(
     int32_t buffer_id,
@@ -1893,9 +1906,17 @@ void DXVAVideoDecodeAccelerator::NotifyPictureReady(int picture_buffer_id,
   DCHECK(main_thread_task_runner_->BelongsToCurrentThread());
   // This task could execute after the decoder has been torn down.
   if (GetState() != kUninitialized && client_) {
+    gfx::ColorSpace color_space;
+    if (share_nv12_textures_ || copy_nv12_textures_) {
+      // Color space information is only valid for NV12 textures.
+      // If the texture has been converted to RGB, we don't actually know what
+      // Color space the output is in.
+      color_space = config_change_detector_->current_color_space();
+    }
     // TODO(henryhsu): Use correct visible size instead of (0, 0). We can't use
     // coded size here so use (0, 0) intentionally to have the client choose.
-    Picture picture(picture_buffer_id, input_buffer_id, gfx::Rect(0, 0), false);
+    Picture picture(picture_buffer_id, input_buffer_id, gfx::Rect(0, 0),
+                    color_space, false);
     client_->PictureReady(picture);
   }
 }