Fix an issue found in https://chromiumcodereview.appspot.com/23205008/

chrome/browser/extensions/api/alarms/alarm_manager.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_ALARMS_ALARM_MANAGER_H__
 #define CHROME_BROWSER_EXTENSIONS_API_ALARMS_ALARM_MANAGER_H__
 
 #include <map>
 #include <queue>
 #include <string>
@@ skipping 104 matching lines @@
   static AlarmManager* Get(Profile* profile);
 
  private:
   friend void RunScheduleNextPoll(AlarmManager*);
   friend class ExtensionAlarmsSchedulingTest;
   FRIEND_TEST_ALL_PREFIXES(ExtensionAlarmsSchedulingTest, PollScheduling);
   FRIEND_TEST_ALL_PREFIXES(ExtensionAlarmsSchedulingTest,
                            ReleasedExtensionPollsInfrequently);
   FRIEND_TEST_ALL_PREFIXES(ExtensionAlarmsSchedulingTest, TimerRunning);
   FRIEND_TEST_ALL_PREFIXES(ExtensionAlarmsSchedulingTest, MinimumGranularity);
+  FRIEND_TEST_ALL_PREFIXES(ExtensionAlarmsSchedulingTest,
+                           DifferentMinimumGranularities);
   friend class ProfileKeyedAPIFactory<AlarmManager>;
 
   typedef std::string ExtensionId;
   typedef std::map<ExtensionId, AlarmList> AlarmMap;
 
   typedef base::Callback<void(const std::string&)> ReadyAction;
   typedef std::queue<ReadyAction> ReadyQueue;
   typedef std::map<ExtensionId, ReadyQueue> ReadyMap;
 
   // Iterator used to identify a particular alarm within the Map/List pair.
@@ skipping 89 matching lines @@
 
   // Next poll's time. Used only by unit tests.
   base::Time test_next_poll_time_;
 
   DISALLOW_COPY_AND_ASSIGN(AlarmManager);
 };
 
 }  //  namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_ALARMS_ALARM_MANAGER_H__