Hold URLRequestContextGetter by scoped_refptr in Drive related code.

chrome/browser/google_apis/auth_service.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/google_apis/auth_service.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/metrics/histogram.h"
 #include "chrome/browser/google_apis/auth_service_observer.h"
 #include "google_apis/gaia/google_service_auth_error.h"
+#include "net/url_request/url_request_context_getter.h"
 
 namespace google_apis {
 
 namespace {
 
 // Used for success ratio histograms. 0 for failure, 1 for success,
 // 2 for no connection (likely offline).
 const int kSuccessRatioHistogramFailure = 0;
 const int kSuccessRatioHistogramSuccess = 1;
 const int kSuccessRatioHistogramNoConnection = 2;
@@ skipping 204 matching lines @@
 void AuthService::OnHandleRefreshToken(bool has_refresh_token) {
   access_token_.clear();
   has_refresh_token_ = has_refresh_token;
 
   FOR_EACH_OBSERVER(AuthServiceObserver,
                     observers_,
                     OnOAuth2RefreshTokenChanged());
 }
 
 }  // namespace google_apis