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

webkit/media/web_data_source_factory.cc

 // Copyright (c) 2011 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.
 
 #include "webkit/media/web_data_source_factory.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "media/base/media_log.h"
 
@@ skipping 32 matching lines @@
       factory_function_(factory_function),
       build_observer_(build_observer) {
   DCHECK(render_loop_);
   DCHECK(frame_);
   DCHECK(media_log_);
   DCHECK(factory_function_);
 }
 
 WebDataSourceFactory::~WebDataSourceFactory() {}
 
-media::DataSourceFactory* WebDataSourceFactory::Clone() const {
-  return new WebDataSourceFactory(render_loop_, frame_, media_log_,
-                                  factory_function_, build_observer_);
+scoped_ptr<media::DataSourceFactory> WebDataSourceFactory::Clone() const {
+  return scoped_ptr<media::DataSourceFactory>(new WebDataSourceFactory(
+      render_loop_, frame_, media_log_, factory_function_, build_observer_));
 }
 
 bool WebDataSourceFactory::AllowRequests() const {
   return true;
 }
 
 media::AsyncDataSourceFactoryBase::BuildRequest*
 WebDataSourceFactory::CreateRequest(const std::string& url,
                                     const BuildCallback& callback) {
   WebDataSource* data_source = factory_function_(render_loop_, frame_,
@@ skipping 35 matching lines @@
   if (!build_observer_.is_null() && data_source.get()) {
     build_observer_.Run(data_source.get());
   }
 
   RequestComplete(status, data_source);
   // Don't do anything after this line. This object is deleted by
   // RequestComplete().
 }
 
 }  // namespace webkit_media