Refactor loading out of ExtensionService.

chrome/browser/extensions/crx_installer.cc

 // Copyright (c) 2011 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/crx_installer.h"
 
 #include <map>
 #include <set>
 
 #include "base/bind.h"
@@ skipping 42 matching lines @@
 static base::LazyInstance<Whitelist>
     g_whitelisted_install_data(base::LINKER_INITIALIZED);
 
 }  // namespace
 
 CrxInstaller::WhitelistEntry::WhitelistEntry()
   : use_app_installed_bubble(false) {}
 CrxInstaller::WhitelistEntry::~WhitelistEntry() {}
 
 // static
+scoped_refptr<CrxInstaller> CrxInstaller::Create(
+    ExtensionService* frontend,
+    ExtensionInstallUI* client) {
+  return new CrxInstaller(frontend->AsWeakPtr(), client);
+}
+
+// static
 void CrxInstaller::SetWhitelistedInstallId(const std::string& id) {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   g_whitelisted_install_data.Get().ids.insert(id);
 }
 
 // static
 void CrxInstaller::SetWhitelistEntry(const std::string& id,
                                      CrxInstaller::WhitelistEntry* entry) {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   Whitelist& data = g_whitelisted_install_data.Get();
@@ skipping 520 matching lines @@
   // Some users (such as the download shelf) need to know when a
   // CRXInstaller is done.  Listening for the EXTENSION_* events
   // is problematic because they don't know anything about the
   // extension before it is unpacked, so they can not filter based
   // on the extension.
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_CRX_INSTALLER_DONE,
       content::Source<CrxInstaller>(this),
       content::NotificationService::NoDetails());
 }