Add offline_enabled field in manifest.

chrome/common/extensions/extension.h

 // 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.
 
 #ifndef CHROME_COMMON_EXTENSIONS_EXTENSION_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_H_
 #pragma once
 
 #include <map>
 #include <set>
@@ skipping 514 matching lines @@
   const ExtensionIconSet& icons() const { return icons_; }
   const base::DictionaryValue* manifest_value() const {
     return manifest_value_.get();
   }
   const std::string default_locale() const { return default_locale_; }
   const URLOverrideMap& GetChromeURLOverrides() const {
     return chrome_url_overrides_;
   }
   const std::string omnibox_keyword() const { return omnibox_keyword_; }
   bool incognito_split_mode() const { return incognito_split_mode_; }
+  bool offline_enabled() const { return offline_enabled_; }
   const std::vector<TtsVoice>& tts_voices() const { return tts_voices_; }
 
   bool wants_file_access() const { return wants_file_access_; }
   int creation_flags() const { return creation_flags_; }
   bool from_webstore() const { return (creation_flags_ & FROM_WEBSTORE) != 0; }
   bool from_bookmark() const { return (creation_flags_ & FROM_BOOKMARK) != 0; }
 
   const std::string& content_security_policy() const {
     return content_security_policy_;
   }
@@ skipping 156 matching lines @@
   // The absolute path to the directory the extension is stored in.
   FilePath path_;
 
   // Default locale for fall back. Can be empty if extension is not localized.
   std::string default_locale_;
 
   // If true, a separate process will be used for the extension in incognito
   // mode.
   bool incognito_split_mode_;
 
+  // Whether the extension or app should be enabled when offline.
+  bool offline_enabled_;
+
   // Defines the set of URLs in the extension's web content.
   URLPatternSet extent_;
 
   // The extension runtime data.
   mutable base::Lock runtime_data_lock_;
   mutable RuntimeData runtime_data_;
 
   // The set of permissions the extension can request at runtime.
   scoped_refptr<const ExtensionPermissionSet> optional_permission_set_;
 
@@ skipping 207 matching lines @@
   // only contain the removed permissions.
   const ExtensionPermissionSet* permissions;
 
   UpdatedExtensionPermissionsInfo(
       const Extension* extension,
       const ExtensionPermissionSet* permissions,
       Reason reason);
 };
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_H_