Use base::ResetAndReturn() in remoting.

remoting/host/setup/oauth_client.cc

 // Copyright 2013 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 "remoting/host/setup/oauth_client.h"
 
+#include "base/callback_helpers.h"
 #include "base/logging.h"
 
 namespace {
 const int kMaxGaiaRetries = 3;
 }  // namespace
 
 namespace remoting {
 
 OAuthClient::OAuthClient(
     scoped_refptr<net::URLRequestContextGetter> url_request_context_getter)
@@ skipping 30 matching lines @@
 
 void OAuthClient::OnRefreshTokenResponse(
     const std::string& access_token,
     int expires_in_seconds) {
   // We never request a refresh token, so this call is not expected.
   NOTREACHED();
 }
 
 void OAuthClient::SendResponse(const std::string& user_email,
                                const std::string& refresh_token) {
-  CompletionCallback on_done = on_done_;
-  on_done_.Reset();
-  on_done.Run(user_email, refresh_token);
+  base::ResetAndReturn(&on_done_).Run(user_email, refresh_token);
 
   // Process the next request in the queue.
   if (pending_requests_.size()) {
     Request request = pending_requests_.front();
     pending_requests_.pop();
     // GetCredentialsFromAuthCode is asynchronous, so it's safe to call it here.
     GetCredentialsFromAuthCode(
         request.oauth_client_info, request.auth_code, request.on_done);
   }
 }
@@ skipping 16 matching lines @@
     CompletionCallback on_done) {
   this->oauth_client_info = oauth_client_info;
   this->auth_code = auth_code;
   this->on_done = on_done;
 }
 
 OAuthClient::Request::~Request() {
 }
 
 }  // namespace remoting