Correct const accessors in base/values.(h|cc), Part II (ListValue)

chrome/browser/extensions/api/alarms/alarm_manager.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 "chrome/browser/extensions/api/alarms/alarm_manager.h"
 
 #include "base/bind.h"
 #include "base/json/json_writer.h"
 #include "base/message_loop.h"
 #include "base/time.h"
@@ skipping 41 matching lines @@
 
 // Creates a TimeDelta from a delay as specified in the API.
 base::TimeDelta TimeDeltaFromDelay(double delay_in_minutes) {
   return base::TimeDelta::FromMicroseconds(
       delay_in_minutes * base::Time::kMicrosecondsPerMinute);
 }
 
 std::vector<Alarm> AlarmsFromValue(const base::ListValue* list) {
   std::vector<Alarm> alarms;
   for (size_t i = 0; i < list->GetSize(); ++i) {
-    base::DictionaryValue* alarm_dict = NULL;
+    const base::DictionaryValue* alarm_dict = NULL;
     Alarm alarm;
     if (list->GetDictionary(i, &alarm_dict) &&
         api::alarms::Alarm::Populate(*alarm_dict, alarm.js_alarm.get())) {
-      base::Value* time_value = NULL;
+      const base::Value* time_value = NULL;
       if (alarm_dict->Get(kAlarmGranularity, &time_value))
         base::GetValueAsTimeDelta(*time_value, &alarm.granularity);
       alarms.push_back(alarm);
     }
   }
   return alarms;
 }
 
 scoped_ptr<base::ListValue> AlarmsToValue(
     const std::vector<Alarm>& alarms) {
@@ skipping 302 matching lines @@
   if (create_info.period_in_minutes.get()) {
     js_alarm->period_in_minutes.reset(
         new double(*create_info.period_in_minutes));
   }
 }
 
 Alarm::~Alarm() {
 }
 
 }  // namespace extensions