Make document service an interface

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 <algorithm>
 #include <string>
 
 #include "base/bind.h"
@@ skipping 1072 matching lines @@
   auth_token_.clear();
   if (type == chrome::NOTIFICATION_TOKEN_AVAILABLE) {
     refresh_token_ =
         profile_->GetTokenService()->GetOAuth2LoginRefreshToken();
   } else {
     refresh_token_.clear();
   }
   FOR_EACH_OBSERVER(Observer, observers_, OnOAuth2RefreshTokenChanged());
 }
 
+//========================= DocumentsServiceInterface ==========================
+
+DocumentsServiceInterface::DocumentsServiceInterface() {

[Ben Chan, 2012/03/08 02:01:19]

this can be removed.

[Greg Spencer (Chromium), 2012/03/08 19:06:35]

Done.

+}
+
+DocumentsServiceInterface::~DocumentsServiceInterface() {
+}
+
 //=============================== DocumentsService =============================
 
 DocumentsService::DocumentsService()
     : profile_(NULL),
       gdata_auth_service_(new GDataAuthService()),
       operation_registry_(new GDataOperationRegistry),
       weak_ptr_factory_(this),
       // The weak pointers is used to post tasks to UI thread.
       weak_ptr_bound_to_ui_thread_(weak_ptr_factory_.GetWeakPtr()) {
 }
@@ skipping 143 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