Make Blacklist::IsBlacklist asynchronous (it will need to be for safe

chrome/browser/extensions/admin_policy.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_BROWSER_EXTENSIONS_ADMIN_POLICY_H_
 #define CHROME_BROWSER_EXTENSIONS_ADMIN_POLICY_H_
 
 #include "base/values.h"
 #include "chrome/common/extensions/extension.h"
 
 namespace extensions {
 class Extension;
 }
 
 // Functions for providing information about the extension whitelist,
 // blacklist, and forcelist imposed by admin policy.
 namespace extensions {
 namespace admin_policy {
 
 // Checks if extensions are blacklisted by default, by policy. When true, this
 // means that even extensions without an ID should be blacklisted (e.g.
 // from the command line, or when loaded as an unpacked extension).
 bool BlacklistedByDefault(const base::ListValue* blacklist);
 
-// Returns true if the extension is allowed by Google blacklist and admin policy
-// white-, black- and forcelists.
-bool UserMayLoad(bool is_google_blacklisted,
-                 const base::ListValue* blacklist,
+// Returns true if the extension is allowed by the admin policy.
+bool UserMayLoad(const base::ListValue* blacklist,
                  const base::ListValue* whitelist,
                  const base::ListValue* forcelist,
                  const Extension* extension,
                  string16* error);
 
 // Returns false if the extension is required to remain running. In practice
 // this enforces the admin policy forcelist.
 bool UserMayModifySettings(const Extension* extension, string16* error);
 
 // Returns false if the extension is required to remain running. In practice
 // this enforces the admin policy forcelist.
 bool MustRemainEnabled(const Extension* extension, string16* error);
 
 }  // namespace
 }  // namespace
 
 #endif  // CHROME_BROWSER_EXTENSIONS_ADMIN_POLICY_H_