Remove DemuxerFactory and URL parameter from Pipeline.

media/tools/seek_tester/seek_tester.cc

Index: media/tools/seek_tester/seek_tester.cc
diff --git a/media/tools/seek_tester/seek_tester.cc b/media/tools/seek_tester/seek_tester.cc
index 17b03eaaa9c15f65f4373afa7b9d7c1bef8d06b1..b3d3e090298fd3225cf6ebe3942c3a6bf89e5451 100644
--- a/media/tools/seek_tester/seek_tester.cc
+++ b/media/tools/seek_tester/seek_tester.cc
@@ -51,8 +51,8 @@ int main(int argc, char** argv) {
   MessageLoop loop;
   media::PipelineStatusCB quitter = base::Bind(&QuitMessageLoop, &loop);
   scoped_refptr<media::FFmpegDemuxer> demuxer(
-      new media::FFmpegDemuxer(&loop, true));
-  demuxer->Initialize(file_data_source, quitter);
+      new media::FFmpegDemuxer(&loop, file_data_source, true));
+  demuxer->Initialize(quitter);
   loop.Run();
 
   demuxer->Seek(base::TimeDelta::FromMilliseconds(seek_target_ms), quitter);