Take advantage of the new Pass() machinery on scoped_ptr{,_malloc}.

media/base/pipeline_impl.h

Index: media/base/pipeline_impl.h
diff --git a/media/base/pipeline_impl.h b/media/base/pipeline_impl.h
index be5529181f9f908f51a7fc9af4d53833fd84b1c4..7178bdecff1ee89e96312f7d48f329fd7969d4c2 100644
--- a/media/base/pipeline_impl.h
+++ b/media/base/pipeline_impl.h
@@ -107,7 +107,7 @@ class MEDIA_EXPORT PipelineImpl
   virtual void Init(const PipelineStatusCB& ended_callback,
                     const PipelineStatusCB& error_callback,
                     const NetworkEventCB& network_callback) OVERRIDE;
-  virtual bool Start(FilterCollection* filter_collection,
+  virtual bool Start(scoped_ptr<FilterCollection> filter_collection,
                      const std::string& uri,
                      const PipelineStatusCB& start_callback) OVERRIDE;
   virtual void Stop(const PipelineStatusCB& stop_callback) OVERRIDE;
@@ -231,7 +231,7 @@ class MEDIA_EXPORT PipelineImpl
   // The following "task" methods correspond to the public methods, but these
   // methods are run as the result of posting a task to the PipelineInternal's
   // message loop.
-  void StartTask(FilterCollection* filter_collection,
+  void StartTask(scoped_ptr<FilterCollection> filter_collection,
                  const std::string& url,
                  const PipelineStatusCB& start_callback);