sync: remove use of protobuf extensions in protocol to reduce static init overhead.

chrome/browser/sync/glue/password_change_processor.cc

 // 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.
 
 #include "chrome/browser/sync/glue/password_change_processor.h"
 
 #include <string>
 
 #include "base/location.h"
 #include "base/string_util.h"
@@ skipping 157 matching lines @@
     return;
   }
 
   DCHECK(deleted_passwords_.empty() && new_passwords_.empty() &&
          updated_passwords_.empty());
 
   for (sync_api::ChangeRecordList::const_iterator it =
            changes.Get().begin(); it != changes.Get().end(); ++it) {
     if (sync_api::ChangeRecord::ACTION_DELETE ==
         it->action) {
-      DCHECK(it->specifics.HasExtension(sync_pb::password))
+      DCHECK(it->specifics.has_password())
           << "Password specifics data not present on delete!";
       DCHECK(it->extra.get());
       sync_api::ExtraPasswordChangeRecordData* extra =
           it->extra.get();
       const sync_pb::PasswordSpecificsData& password = extra->unencrypted();
       webkit::forms::PasswordForm form;
       PasswordModelAssociator::CopyPassword(password, &form);
       deleted_passwords_.push_back(form);
       model_associator_->Disassociate(it->id);
       continue;
@@ skipping 65 matching lines @@
 
 void PasswordChangeProcessor::StopObserving() {
   DCHECK(expected_loop_ == MessageLoop::current());
   notification_registrar_.Remove(
       this,
       chrome::NOTIFICATION_LOGINS_CHANGED,
       content::Source<PasswordStore>(password_store_));
 }
 
 }  // namespace browser_sync