Lazy background page branding: "Transient Background Page". Rename

chrome/common/extensions/extension_manifest_constants.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/common/extensions/extension_manifest_constants.h"
 
 namespace extension_manifest_keys {
 
 const char kAllFrames[] = "all_frames";
 const char kAltKey[] = "altKey";
 const char kApp[] = "app";
 const char kBackground[] = "background";
 const char kBackgroundAllowJsAccess[] = "background.allow_js_access";
 const char kBackgroundPage[] = "background.page";
 const char kBackgroundPageLegacy[] = "background_page";
-const char kBackgroundPersistent[] = "background.persistent";
+const char kBackgroundTransient[] = "background.transient";
 const char kBackgroundScripts[] = "background.scripts";
 const char kBrowserAction[] = "browser_action";
 const char kChromeURLOverrides[] = "chrome_url_overrides";
 const char kCommands[] = "commands";
 const char kContentScripts[] = "content_scripts";
 const char kContentSecurityPolicy[] = "content_security_policy";
 const char kConvertedFromUserScript[] = "converted_from_user_script";
 const char kCss[] = "css";
 const char kCtrlKey[] = "ctrlKey";
 const char kCurrentLocale[] = "current_locale";
@@ skipping 437 matching lines @@
     "Loading platform_app extension type is turned off by default. "
     "You can enable this type with the --enable-platform-apps "
     "command-line flag.";
 const char kReservedMessageFound[] =
     "Reserved key * found in message catalog.";
 #if defined(OS_CHROMEOS)
 const char kIllegalPlugins[] =
     "Extensions cannot install plugins on Chrome OS";
 #endif
 }  // namespace extension_manifest_errors