c/b/supervised_user: Use range-based for where appropriate.

chrome/browser/supervised_user/supervised_user_shared_settings_service_unittest.cc

 // Copyright 2014 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 <string>
+
 #include "base/bind.h"
 #include "base/json/json_writer.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/supervised_user/supervised_user_shared_settings_service.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_profile.h"
 #include "sync/api/fake_sync_change_processor.h"
 #include "sync/api/sync_change.h"
 #include "sync/api/sync_change_processor_wrapper_for_test.h"
 #include "sync/api/sync_error_factory_mock.h"
@@ skipping 79 matching lines @@
     EXPECT_FALSE(result.error().IsSet());
   }
 
   const base::DictionaryValue* GetAllSettings() {
     return profile_.GetPrefs()->GetDictionary(
         prefs::kSupervisedUserSharedSettings);
   }
 
   void VerifySyncChangesAndClear() {
     SyncChangeList& changes = sync_processor_->changes();
-    for (SyncChangeList::const_iterator it = changes.begin();
-         it != changes.end();
-         ++it) {
+    for (const SyncChange& sync_change : changes) {
       const sync_pb::ManagedUserSharedSettingSpecifics& setting =
-          it->sync_data().GetSpecifics().managed_user_shared_setting();
+          sync_change.sync_data().GetSpecifics().managed_user_shared_setting();
       EXPECT_EQ(
           setting.value(),
           ToJson(settings_service_.GetValue(setting.mu_id(), setting.key())));
     }
     changes.clear();
   }
 
   // testing::Test overrides:
   virtual void SetUp() OVERRIDE {
     subscription_ = settings_service_.Subscribe(
@@ skipping 144 matching lines @@
       settings_service_.GetAllSyncData(SUPERVISED_USER_SHARED_SETTINGS).size());
   EXPECT_EQ(ToJson(&name),
             ToJson(settings_service_.GetValue(kIdA, "name")));
   EXPECT_EQ(ToJson(&age), ToJson(settings_service_.GetValue(kIdA, "age")));
   EXPECT_EQ(ToJson(&bar), ToJson(settings_service_.GetValue(kIdB, "foo")));
   EXPECT_EQ(ToJson(&blurp), ToJson(settings_service_.GetValue(kIdC, "baz")));
   EXPECT_FALSE(settings_service_.GetValue(kIdA, "foo"));
   EXPECT_FALSE(settings_service_.GetValue(kIdB, "name"));
   EXPECT_FALSE(settings_service_.GetValue(kIdC, "name"));
 }