Add experimental.alarms API to allow lazy background pages to

chrome/browser/extensions/lazy_background_task_queue.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/lazy_background_task_queue.h"
 
 #include "base/callback.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/extensions/extension_process_manager.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 32 matching lines @@
   PendingTasksMap::iterator it = pending_tasks_.find(key);
   if (it == pending_tasks_.end()) {
     tasks_list = new PendingTasksList();
     pending_tasks_[key] = linked_ptr<PendingTasksList>(tasks_list);
 
     // If this is the first enqueued task, ensure the background page
     // is loaded.
     const Extension* extension = profile->GetExtensionService()->
         extensions()->GetByID(extension_id);
     DCHECK(extension->has_lazy_background_page());
-    ExtensionProcessManager* pm = profile->GetExtensionProcessManager();
+  ExtensionProcessManager* pm = profile->GetExtensionProcessManager();
     pm->IncrementLazyKeepaliveCount(extension);
     pm->CreateBackgroundHost(extension, extension->GetBackgroundURL());
   } else {
     tasks_list = it->second.get();
   }
 
   tasks_list->push_back(task);
 }
 
-void LazyBackgroundTaskQueue::ProcessPendingTasks(
-    ExtensionHost* host) {
+void LazyBackgroundTaskQueue::ProcessPendingTasks(ExtensionHost* host) {
   PendingTasksKey key(host->profile(), host->extension()->id());
   PendingTasksMap::iterator map_it = pending_tasks_.find(key);
   if (map_it == pending_tasks_.end()) {
     NOTREACHED();  // lazy page should not load without any pending tasks
     return;
   }
 
   PendingTasksList* tasks = map_it->second.get();
   for (PendingTasksList::const_iterator it = tasks->begin();
        it != tasks->end(); ++it) {
@@ skipping 36 matching lines @@
       if (profile->HasOffTheRecordProfile())
         pending_tasks_.erase(PendingTasksKey(
             profile->GetOffTheRecordProfile(), unloaded->extension->id()));
       break;
     }
     default:
       NOTREACHED();
       break;
   }
 }