Disable sync for default apps

chrome/common/extensions/extension.h

 // 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.
 
 #ifndef CHROME_COMMON_EXTENSIONS_EXTENSION_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_H_
 
 #include <algorithm>
 #include <iosfwd>
 #include <map>
@@ skipping 229 matching lines @@
     FROM_BOOKMARK = 1 << 4,
 
     // |FOLLOW_SYMLINKS_ANYWHERE| means that resources can be symlinks to
     // anywhere in the filesystem, rather than being restricted to the
     // extension directory.
     FOLLOW_SYMLINKS_ANYWHERE = 1 << 5,
 
     // |ERROR_ON_PRIVATE_KEY| means that private keys inside an
     // extension should be errors rather than warnings.
     ERROR_ON_PRIVATE_KEY = 1 << 6,
+
+    // |FROM_DEFAULT| indicates the extension was created as default.
+    FROM_DEFAULT = 1 << 7,
   };
 
   static scoped_refptr<Extension> Create(const FilePath& path,
                                          Location location,
                                          const base::DictionaryValue& value,
                                          int flags,
                                          std::string* error);
 
   // In a few special circumstances, we want to create an Extension and give it
   // an explicit id. Most consumers should just use the other Create() method.
@@ skipping 428 matching lines @@
   const OAuth2Info& oauth2_info() const { return oauth2_info_; }
   const std::vector<webkit_glue::WebIntentServiceData>&
       intents_services() const {
     return intents_services_;
   }
 
   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; }
+  bool from_default() const { return (creation_flags_ & FROM_DEFAULT) != 0; }
 
   // App-related.
   bool is_app() const {
     return is_packaged_app() || is_hosted_app() || is_platform_app();
   }
   bool is_platform_app() const;
   bool is_hosted_app() const;
   bool is_packaged_app() const;
   bool is_storage_isolated() const { return is_storage_isolated_; }
   const URLPatternSet& web_extent() const { return extent_; }
@@ skipping 492 matching lines @@
 
   UpdatedExtensionPermissionsInfo(
       const Extension* extension,
       const PermissionSet* permissions,
       Reason reason);
 };
 
 } // namespace extensions
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_H_