diff --git a/media/event/mpd_notify_muxer_listener.cc b/media/event/mpd_notify_muxer_listener.cc
index be4f69f755..28c518aa81 100644
--- a/media/event/mpd_notify_muxer_listener.cc
+++ b/media/event/mpd_notify_muxer_listener.cc
@@ -104,7 +104,8 @@ void MpdNotifyMuxerListener::OnNewSegment(uint64 start_time,
   if (mpd_notifier_->dash_profile() != dash_packager::kLiveProfile)
     return;
   // TODO(kqyang): Check return result.
-  mpd_notifier_->NotifyNewSegment(notification_id_, start_time, duration);
+  mpd_notifier_->NotifyNewSegment(
+      notification_id_, start_time, duration, segment_file_size);
 }
 
 }  // namespace event
diff --git a/mpd/base/mpd_notifier.h b/mpd/base/mpd_notifier.h
index ec8c635b3d..0131abe505 100644
--- a/mpd/base/mpd_notifier.h
+++ b/mpd/base/mpd_notifier.h
@@ -53,11 +53,13 @@ class MpdNotifier {
   /// @param start_time is the start time of the new segment, in units of the
   ///        stream's time scale.
   /// @param duration is the duration of the new segment, in units of the
-  ///        stream's time scale..
+  ///        stream's time scale.
+  /// @param size is the new segment size in bytes.
   /// @return true on success, false otherwise.
   virtual bool NotifyNewSegment(uint32 container_id,
                                 uint64 start_time,
-                                uint64 duration) = 0;
+                                uint64 duration,
+                                uint64 size) = 0;
 
   /// Adds content protection information to the MPD.
   /// @param container_id is the nummeric container ID obtained from calling
diff --git a/mpd/base/simple_mpd_notifier.cc b/mpd/base/simple_mpd_notifier.cc
index b96947a4d4..a13299b378 100644
--- a/mpd/base/simple_mpd_notifier.cc
+++ b/mpd/base/simple_mpd_notifier.cc
@@ -16,6 +16,7 @@ using media::File;
 namespace dash_packager {
 
 SimpleMpdNotifier::SimpleMpdNotifier(DashProfile dash_profile,
+                                     const MpdOptions& mpd_options,
                                      const std::vector<std::string>& base_urls,
                                      const std::string& output_path)
     : MpdNotifier(dash_profile),
@@ -23,7 +24,7 @@ SimpleMpdNotifier::SimpleMpdNotifier(DashProfile dash_profile,
       mpd_builder_(new MpdBuilder(dash_profile == kLiveProfile
                                       ? MpdBuilder::kDynamic
                                       : MpdBuilder::kStatic,
-                                  MpdOptions())) {
+                                  mpd_options)) {
   DCHECK(dash_profile == kLiveProfile || dash_profile == kOnDemandProfile);
   for (size_t i = 0; i < base_urls.size(); ++i)
     mpd_builder_->AddBaseUrl(base_urls[i]);
@@ -69,7 +70,8 @@ bool SimpleMpdNotifier::NotifyNewContainer(const MediaInfo& media_info,
 
 bool SimpleMpdNotifier::NotifyNewSegment(uint32 container_id,
                                          uint64 start_time,
-                                         uint64 duration) {
+                                         uint64 duration,
+                                         uint64 size) {
   base::AutoLock auto_lock(lock_);
 
   RepresentationMap::iterator it = representation_map_.find(container_id);
@@ -77,8 +79,7 @@ bool SimpleMpdNotifier::NotifyNewSegment(uint32 container_id,
     LOG(ERROR) << "Unexpected container_id: " << container_id;
     return false;
   }
-  // TODO(kqyang): AddNewSegment() requires size for the third argument.
-  // !it->second->AddNewSegment(start_time, duration);
+  it->second->AddNewSegment(start_time, duration, size);
   return WriteMpdToFile();
 }
 
diff --git a/mpd/base/simple_mpd_notifier.h b/mpd/base/simple_mpd_notifier.h
index d50b66dfdd..16d9597f51 100644
--- a/mpd/base/simple_mpd_notifier.h
+++ b/mpd/base/simple_mpd_notifier.h
@@ -21,11 +21,14 @@ class AdaptationSet;
 class MpdBuilder;
 class Representation;
 
+struct MpdOptions;
+
 /// A simple MpdNotifier implementation which receives muxer listener event and
 /// generates an Mpd file.
 class SimpleMpdNotifier : public MpdNotifier {
  public:
   SimpleMpdNotifier(DashProfile dash_profile,
+                    const MpdOptions& mpd_options,
                     const std::vector<std::string>& base_urls,
                     const std::string& output_path);
   virtual ~SimpleMpdNotifier();
@@ -37,7 +40,8 @@ class SimpleMpdNotifier : public MpdNotifier {
                                   uint32* id) OVERRIDE;
   virtual bool NotifyNewSegment(uint32 id,
                                 uint64 start_time,
-                                uint64 duration) OVERRIDE;
+                                uint64 duration,
+                                uint64 size) OVERRIDE;
   virtual bool AddContentProtectionElement(
       uint32 id,
       const ContentProtectionElement& content_protection_element) OVERRIDE;