Extract LazyBackgroundTaskQueue from ExtensionSystem.

apps/launcher.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 "apps/launcher.h"
 
 #include <set>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 10 matching lines @@
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/content_switches.h"
 #include "content/public/common/url_constants.h"
 #include "extensions/browser/api/app_runtime/app_runtime_api.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_host.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_registry.h"
-#include "extensions/browser/extension_system.h"
 #include "extensions/browser/granted_file_entry.h"
 #include "extensions/browser/lazy_background_task_queue.h"
 #include "extensions/browser/process_manager.h"
 #include "extensions/common/api/app_runtime.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/manifest_handlers/kiosk_mode_info.h"
 #include "net/base/filename_util.h"
 #include "net/base/net_util.h"
 #include "url/gurl.h"
 
 #if defined(OS_CHROMEOS)
 #include "components/user_manager/user_manager.h"
 #endif
 
 namespace app_runtime = extensions::core_api::app_runtime;
 
 using content::BrowserThread;
 using extensions::AppRuntimeEventRouter;
 using extensions::app_file_handler_util::CreateFileEntry;
 using extensions::app_file_handler_util::FileHandlerCanHandleFile;
 using extensions::app_file_handler_util::FileHandlerForId;
 using extensions::app_file_handler_util::FirstFileHandlerForFile;
 using extensions::app_file_handler_util::HasFileSystemWritePermission;
 using extensions::app_file_handler_util::PrepareFilesForWritableApp;
 using extensions::EventRouter;
 using extensions::Extension;
 using extensions::ExtensionHost;
-using extensions::ExtensionSystem;
+//using extensions::ExtensionSystem;

[asargent_no_longer_on_chrome, 2015/05/14 21:13:55]

nit: did you mean to remove this line, instead of just comment it out?

[juncai, 2015/05/16 00:46:40]

Done.

 using extensions::GrantedFileEntry;
 
 namespace apps {
 
 namespace {
 
 const char kFallbackMimeType[] = "application/octet-stream";
 
 bool DoMakePathAbsolute(const base::FilePath& current_directory,
                         base::FilePath* file_path) {
@@ skipping 184 matching lines @@
 
     if (handler_id_.empty())
       handler_id_ = handler->id;
 
     // Access needs to be granted to the file for the process associated with
     // the extension. To do this the ExtensionHost is needed. This might not be
     // available, or it might be in the process of being unloaded, in which case
     // the lazy background task queue is used to load the extension and then
     // call back to us.
     extensions::LazyBackgroundTaskQueue* const queue =
-        ExtensionSystem::Get(profile_)->lazy_background_task_queue();
+        extensions::LazyBackgroundTaskQueue::Get(profile_);
     if (queue->ShouldEnqueueTask(profile_, extension)) {
       queue->AddPendingTask(
           profile_, extension_id,
           base::Bind(&PlatformAppPathLauncher::GrantAccessToFilesAndLaunch,
                      this));
       return;
     }
 
     extensions::ProcessManager* const process_manager =
         extensions::ProcessManager::Get(profile_);
@@ skipping 150 matching lines @@
 void LaunchPlatformAppWithUrl(Profile* profile,
                               const Extension* extension,
                               const std::string& handler_id,
                               const GURL& url,
                               const GURL& referrer_url) {
   AppRuntimeEventRouter::DispatchOnLaunchedEventWithUrl(
       profile, extension, handler_id, url, referrer_url);
 }
 
 }  // namespace apps