Fire CanPlayThrough immediately for local and streaming media files

webkit/media/webmediaplayer_impl.cc

Index: webkit/media/webmediaplayer_impl.cc
diff --git a/webkit/media/webmediaplayer_impl.cc b/webkit/media/webmediaplayer_impl.cc
index 22c24d3be8932abb4ba3db6bc2e1225817503bc2..dec89e3a0bd53361ce129cb5ba0f743cbecf92f9 100644
--- a/webkit/media/webmediaplayer_impl.cc
+++ b/webkit/media/webmediaplayer_impl.cc
@@ -291,9 +291,11 @@ void WebMediaPlayerImpl::load(const WebKit::WebURL& url) {
     }
 
     // TODO(wjia): add audio decoder handling when it's available.
-    if (has_video || has_audio)
+    if (has_video || has_audio) {
       filter_collection_->SetDemuxerFactory(
           new media::DummyDemuxerFactory(has_video, has_audio));
+      pipeline_->SetMediaStream(true);
+    }
   }
 
   // Handle any volume changes that occured before load().