Support for parsing encrypted WebM streams by src.

webkit/media/filter_helpers.cc

Index: webkit/media/filter_helpers.cc
diff --git a/webkit/media/filter_helpers.cc b/webkit/media/filter_helpers.cc
index 4308f9aa03d92d0dc0d9b9f738a0a34e365db19e..df584a4f6243aad5f4e5de5288041575f0a1dde7 100644
--- a/webkit/media/filter_helpers.cc
+++ b/webkit/media/filter_helpers.cc
@@ -72,9 +72,10 @@ void BuildMediaSourceCollection(
 void BuildDefaultCollection(
     const scoped_refptr<media::DataSource>& data_source,
     const scoped_refptr<base::MessageLoopProxy>& message_loop,
-    media::FilterCollection* filter_collection) {
+    media::FilterCollection* filter_collection,
+    const media::FFmpegNeedKeyCB& need_key_cb) {
   filter_collection->SetDemuxer(new media::FFmpegDemuxer(
-      message_loop, data_source));
+      message_loop, data_source, need_key_cb));
 
   AddDefaultDecodersToCollection(message_loop, filter_collection);
 }