Cleanup: Remove unneeded extension_messages.h usage and ifdef out some extensions code usage when e…

extensions/browser/lazy_background_task_queue.cc

 // Copyright 2013 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 "extensions/browser/lazy_background_task_queue.h"
 
 #include "base/callback.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/site_instance.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/extension_host.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/browser/extensions_browser_client.h"
 #include "extensions/browser/notification_types.h"
 #include "extensions/browser/process_manager.h"
 #include "extensions/browser/process_map.h"
 #include "extensions/common/extension.h"
-#include "extensions/common/extension_messages.h"
 #include "extensions/common/manifest_handlers/background_info.h"
 #include "extensions/common/view_type.h"
 
 namespace extensions {
 
 LazyBackgroundTaskQueue::LazyBackgroundTaskQueue(
     content::BrowserContext* browser_context)
     : browser_context_(browser_context), extension_registry_observer_(this) {
   registrar_.Add(this,
                  extensions::NOTIFICATION_EXTENSION_HOST_DID_STOP_LOADING,
@@ skipping 149 matching lines @@
   // task queue as well.
   ExtensionsBrowserClient* browser_client = ExtensionsBrowserClient::Get();
   if (browser_client->HasOffTheRecordContext(browser_context)) {
     ProcessPendingTasks(NULL,
                         browser_client->GetOffTheRecordContext(browser_context),
                         extension);
   }
 }
 
 }  // namespace extensions