Revert 127317 - Implemented API for tracking ongoing file transfers from file manager.

chrome/browser/chromeos/gdata/gdata.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/chromeos/gdata/gdata.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/message_loop_proxy.h"
@@ skipping 178 matching lines @@
 }
 
 void DocumentsService::Initialize(Profile* profile) {
   profile_ = profile;
   // AddObserver() should be called before Initialize() as it could change
   // the refresh token.
   gdata_auth_service_->AddObserver(this);
   gdata_auth_service_->Initialize(profile);
 }
 
-GDataOperationRegistry* DocumentsService::operation_registry() const {
-  return operation_registry_.get();
-}
-
 void DocumentsService::CancelAll() {
   operation_registry_->CancelAll();
 }
 
 void DocumentsService::Authenticate(const AuthStatusCallback& callback) {
   gdata_auth_service_->StartAuthentication(operation_registry_.get(),
                                            callback);
 }
 
 void DocumentsService::GetDocuments(const GURL& url,
@@ skipping 164 matching lines @@
 void DocumentsService::RetryOperation(GDataOperationInterface* operation) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   gdata_auth_service_->ClearOAuth2Token();
   // User authentication might have expired - rerun the request to force
   // auth token refresh.
   StartOperation(operation);
 }
 
 }  // namespace gdata