Motown: Add missing field initialization.

services/media/factory_service/media_timeline_controller_impl.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MOJO_SERVICES_MEDIA_FACTORY_TIMELINE_CONTROLLER_IMPL_H_
 #define MOJO_SERVICES_MEDIA_FACTORY_TIMELINE_CONTROLLER_IMPL_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 133 matching lines @@
                               MediaFactoryService* owner);
 
   // Takes action when a site changes its end-of-stream value.
   void HandleSiteEndOfStreamChange();
 
   Binding<MediaTimelineControlSite> control_site_binding_;
   Binding<TimelineConsumer> consumer_binding_;
   MojoPublisher<GetStatusCallback> status_publisher_;
   std::vector<SiteState> site_states_;
   TimelineFunction current_timeline_function_;
-  bool end_of_stream_;
+  bool end_of_stream_ = false;
   std::weak_ptr<TimelineTransition> pending_transition_;
 };
 
 }  // namespace media
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_MEDIA_FACTORY_TIMELINE_CONTROLLER_IMPL_H_