Convert Pass()→std::move() in mojo/

mojo/message_pump/handle_watcher_unittest.cc

 // Copyright 2013 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 "mojo/message_pump/handle_watcher.h"
 
 #include <string>
 
 #include "base/at_exit.h"
 #include "base/auto_reset.h"
@@ skipping 36 matching lines @@
   delete watcher;
   next_callback.Run(result);
 }
 
 scoped_ptr<base::MessageLoop> CreateMessageLoop(MessageLoopConfig config) {
   scoped_ptr<base::MessageLoop> loop;
   if (config == MESSAGE_LOOP_CONFIG_DEFAULT)
     loop.reset(new base::MessageLoop());
   else
     loop.reset(new base::MessageLoop(MessagePumpMojo::Create()));
-  return loop.Pass();
+  return loop;
 }
 
 // Helper class to manage the callback and running the message loop waiting for
 // message to be received. Typical usage is something like:
 //   Schedule callback returned from GetCallback().
 //   RunUntilGotCallback();
 //   EXPECT_TRUE(got_callback());
 //   clear_callback();
 class CallbackHelper {
  public:
@@ skipping 406 matching lines @@
                               message_loop.task_runner(),
                               &run_loop, &threads_active_counter));
   }
   run_loop.Run();
   ASSERT_EQ(0, threads_active_counter);
 }
 
 }  // namespace test
 }  // namespace common
 }  // namespace mojo