Update media duration if data is appended after the previous duration

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 aa69b1ac5b57c5c4b852d860f57f6a8d1c485f6d..011393f8454d1231bdadd120b3ead45d70f4f4d4 100644
--- a/webkit/media/webmediaplayer_impl.cc
+++ b/webkit/media/webmediaplayer_impl.cc
@@ -884,6 +884,12 @@ void WebMediaPlayerImpl::OnPipelineError(PipelineStatus error) {
   Repaint();
 }
 
+void WebMediaPlayerImpl::OnPipelineDurationChanged() {
+  DCHECK_EQ(main_loop_, MessageLoop::current());
+
+  GetClient()->durationChanged();
+}
+
 void WebMediaPlayerImpl::OnDemuxerOpened() {
   DCHECK_EQ(main_loop_, MessageLoop::current());
 
@@ -987,6 +993,8 @@ void WebMediaPlayerImpl::StartPipeline() {
       base::Bind(&WebMediaPlayerProxy::PipelineEndedCallback, proxy_.get()),
       base::Bind(&WebMediaPlayerProxy::PipelineErrorCallback, proxy_.get()),
       base::Bind(&WebMediaPlayerProxy::PipelineInitializationCallback,
+                 proxy_.get()),
+      base::Bind(&WebMediaPlayerProxy::PipelineDurationChangedCallback,
                  proxy_.get()));
 }