Make ExtensionService use ExtensionSet.

chrome/browser/extensions/extension_updater.cc

 // 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.
 
 #include "chrome/browser/extensions/extension_updater.h"
 
 #include <algorithm>
 #include <set>
 
 #include "base/bind.h"
@@ skipping 1007 matching lines @@
     // TODO(skerner): Move the determination of what gets fetched into
     // class PendingExtensionManager.
     Extension::Location location = iter->second.install_source();
     if (location != Extension::EXTERNAL_PREF &&
         location != Extension::EXTERNAL_REGISTRY) {
       fetches_builder.AddPendingExtension(iter->first, iter->second);
       pending_ids.insert(iter->first);
     }
   }
 
-  const ExtensionList* extensions = service_->extensions();
-  for (ExtensionList::const_iterator iter = extensions->begin();
+  const ExtensionSet* extensions = service_->extensions();
+  for (ExtensionSet::const_iterator iter = extensions->begin();
        iter != extensions->end(); ++iter) {
     // An extension might be overwritten by policy, and have its update url
     // changed. Make sure existing extensions aren't fetched again, if a
     // pending fetch for an extension with the same id already exists.
     if (!ContainsKey(pending_ids, (*iter)->id())) {
       fetches_builder.AddExtension(**iter);
     }
   }
 
   fetches_builder.ReportStats();
@@ skipping 204 matching lines @@
   std::set<std::string>::const_iterator i;
   for (i = ids.begin(); i != ids.end(); ++i)
     in_progress_ids_.insert(*i);
 }
 
 void ExtensionUpdater::RemoveFromInProgress(const std::set<std::string>& ids) {
   std::set<std::string>::const_iterator i;
   for (i = ids.begin(); i != ids.end(); ++i)
     in_progress_ids_.erase(*i);
 }