Remove context-based dependencies on SyncerSession from ApplyUpdatesCommand....

chrome/browser/sync/engine/apply_updates_command.cc

 // Copyright (c) 2006-2009 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/engine/apply_updates_command.h"
 
 #include "chrome/browser/sync/engine/syncer_session.h"
 #include "chrome/browser/sync/engine/update_applicator.h"
 #include "chrome/browser/sync/syncable/directory_manager.h"
 #include "chrome/browser/sync/syncable/syncable.h"
 #include "chrome/browser/sync/util/sync_types.h"
 
 namespace browser_sync {
 
 ApplyUpdatesCommand::ApplyUpdatesCommand() {}
 ApplyUpdatesCommand::~ApplyUpdatesCommand() {}
 
 void ApplyUpdatesCommand::ModelChangingExecuteImpl(SyncerSession *session) {
   syncable::ScopedDirLookup dir(session->dirman(), session->account_name());
   if (!dir.good()) {
     LOG(ERROR) << "Scoped dir lookup failed!";
     return;
   }
   syncable::WriteTransaction trans(dir, syncable::SYNCER, __FILE__, __LINE__);
   syncable::Directory::UnappliedUpdateMetaHandles handles;
   dir->GetUnappliedUpdateMetaHandles(&trans, &handles);
 
-  UpdateApplicator applicator(session, handles.begin(), handles.end());
-  while (applicator.AttemptOneApplication(&trans)) {
-  }
-  applicator.SaveProgressIntoSessionState();
+  UpdateApplicator applicator(session->resolver(), handles.begin(),
+                              handles.end());
+  while (applicator.AttemptOneApplication(&trans)) {}
+  applicator.SaveProgressIntoSessionState(session);
 }
 
 }  // namespace browser_sync