Delete the omahaproxy-backed extension blacklist and clear its entries from the

chrome/browser/extensions/extension_service.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_EXTENSION_SERVICE_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 781 matching lines @@
   // that have been orphaned by an uninstall.
   void GarbageCollectIsolatedStorage();
   void OnGarbageCollectIsolatedStorageFinished();
   void OnNeedsToGarbageCollectIsolatedStorage();
 
   // extensions::Blacklist::Observer implementation.
   virtual void OnBlacklistUpdated() OVERRIDE;
 
   // Manages the blacklisted extensions, intended as callback from
   // Blacklist::GetBlacklistedIDs.
-  void ManageBlacklist(const std::set<std::string>& old_blacklisted_ids,
-                       const std::set<std::string>& new_blacklisted_ids);
+  void ManageBlacklist(const std::set<std::string>& blacklisted_ids);
 
   // Controls if installs are delayed. See comment for
   // |installs_delayed_for_gc_|.
   void set_installs_delayed_for_gc(bool value) {
     installs_delayed_for_gc_ = value;
   }
   bool installs_delayed_for_gc() const { return installs_delayed_for_gc_; }
 
   // The normal profile associated with this ExtensionService.
   Profile* profile_;
@@ skipping 148 matching lines @@
 #endif
 
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            InstallAppsWithUnlimtedStorage);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            InstallAppsAndCheckStorageProtection);
   DISALLOW_COPY_AND_ASSIGN(ExtensionService);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_