base: Use std::move() instead of Pass() for real movable types.

base/prefs/pref_member.cc

 // Copyright (c) 2012 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 "base/prefs/pref_member.h"
 
+#include <utility>
+
 #include "base/callback.h"
 #include "base/callback_helpers.h"
 #include "base/location.h"
 #include "base/prefs/pref_service.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/value_conversions.h"
 
 using base::SingleThreadTaskRunner;
 
 namespace subtle {
@@ skipping 32 matching lines @@
     prefs_ = NULL;
   }
 }
 
 void PrefMemberBase::MoveToThread(
     scoped_refptr<SingleThreadTaskRunner> task_runner) {
   VerifyValuePrefName();
   // Load the value from preferences if it hasn't been loaded so far.
   if (!internal())
     UpdateValueFromPref(base::Closure());
-  internal()->MoveToThread(task_runner.Pass());
+  internal()->MoveToThread(std::move(task_runner));
 }
 
 void PrefMemberBase::OnPreferenceChanged(PrefService* service,
                                          const std::string& pref_name) {
   VerifyValuePrefName();
   UpdateValueFromPref((!setting_value_ && !observer_.is_null()) ?
       base::Bind(observer_, pref_name) : base::Closure());
 }
 
 void PrefMemberBase::UpdateValueFromPref(const base::Closure& callback) const {
@@ skipping 47 matching lines @@
         FROM_HERE, base::Bind(&PrefMemberBase::Internal::UpdateValue, this,
                               value.release(), is_managed, is_user_modifiable,
                               closure_runner.Release()));
     DCHECK(may_run);
   }
 }
 
 void PrefMemberBase::Internal::MoveToThread(
     scoped_refptr<SingleThreadTaskRunner> task_runner) {
   CheckOnCorrectThread();
-  thread_task_runner_ = task_runner.Pass();
+  thread_task_runner_ = std::move(task_runner);
 }
 
 bool PrefMemberVectorStringUpdate(const base::Value& value,
                                   std::vector<std::string>* string_vector) {
   if (!value.IsType(base::Value::TYPE_LIST))
     return false;
   const base::ListValue* list = static_cast<const base::ListValue*>(&value);
 
   std::vector<std::string> local_vector;
   for (base::ListValue::const_iterator it = list->begin();
@@ skipping 74 matching lines @@
   base::ListValue list_value;
   list_value.AppendStrings(value);
   prefs()->Set(pref_name(), list_value);
 }
 
 template <>
 bool PrefMember<std::vector<std::string> >::Internal::UpdateValueInternal(
     const base::Value& value) const {
   return subtle::PrefMemberVectorStringUpdate(value, &value_);
 }