Logged information from BufferedDataSource including

content/renderer/media/buffered_data_source.h

Index: content/renderer/media/buffered_data_source.h
diff --git a/content/renderer/media/buffered_data_source.h b/content/renderer/media/buffered_data_source.h
index da451ba9a73e52b20866a30760fde51c3a1d20d3..b16bd22ad0db5f6d4e13b23d9a2f72ce107b41ef 100644
--- a/content/renderer/media/buffered_data_source.h
+++ b/content/renderer/media/buffered_data_source.h
@@ -54,6 +54,13 @@ class CONTENT_EXPORT BufferedDataSource : public media::DataSource {
       BufferedResourceLoader::CORSMode cors_mode,
       const InitializeCB& init_cb);
 
+  // Wrap an existing InitializeCB and return a new InitializeCB that calls
+  // the original but also logs information about the BufferedDataSource
+  // post initialization.
+  InitializeCB CreateInitializeCB(
+      const scoped_refptr<media::MediaLog>& media_log,
+      const InitializeCB& init_cb);
+
   // Adjusts the buffering algorithm based on the given preload value.
   void SetPreload(Preload preload);