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 b63d904beef891498079391976fe748eca163239..cea134bc0798f1a29f09b4bce9c6eb5e44633788 100644
--- a/webkit/media/webmediaplayer_impl.cc
+++ b/webkit/media/webmediaplayer_impl.cc
@@ -889,6 +889,12 @@ 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());
 
@@ -992,6 +998,8 @@ 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()));
 }