Clear existing alarms when uninstalling extension.

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/lazy_instance.h"
 #include "base/message_loop.h"
@@ skipping 79 matching lines @@
 }  // namespace
 
 // AlarmManager
 
 AlarmManager::AlarmManager(Profile* profile)
     : profile_(profile),
       clock_(new base::DefaultClock()),
       delegate_(new DefaultAlarmDelegate(profile)) {
   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_LOADED,
                  content::Source<Profile>(profile_));
+  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNINSTALLED,
+                 content::Source<Profile>(profile_));
 
   StateStore* storage = ExtensionSystem::Get(profile_)->state_store();
   if (storage)
     storage->RegisterKey(kRegisteredAlarms);
 }
 
 AlarmManager::~AlarmManager() {
 }
 
 void AlarmManager::AddAlarm(const std::string& extension_id,
@@ skipping 227 matching lines @@
       const Extension* extension =
           content::Details<const Extension>(details).ptr();
       StateStore* storage = ExtensionSystem::Get(profile_)->state_store();
       if (storage) {
         storage->GetExtensionValue(extension->id(), kRegisteredAlarms,
             base::Bind(&AlarmManager::ReadFromStorage,
                        AsWeakPtr(), extension->id()));
       }
       break;
     }
+    case chrome::NOTIFICATION_EXTENSION_UNINSTALLED: {
+      const Extension* extension =
+          content::Details<const Extension>(details).ptr();
+      RemoveAllAlarms(extension->id());
+      break;
+    }
     default:
       NOTREACHED();
       break;
   }
 }
 
 // AlarmManager::Alarm
 
 Alarm::Alarm()
     : js_alarm(new api::alarms::Alarm()) {
@@ skipping 30 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