Update CrOS to use scoped_refptr<T>::get() rather than implicit "operator T*"

chrome/browser/chromeos/policy/device_cloud_policy_store_chromeos.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/policy/device_cloud_policy_store_chromeos.h"
 
 #include "base/bind.h"
 #include "chrome/browser/chromeos/policy/device_policy_decoder_chromeos.h"
 #include "chrome/browser/chromeos/policy/enterprise_install_attributes.h"
 #include "chrome/browser/policy/proto/chromeos/chrome_device_policy.pb.h"
@@ skipping 17 matching lines @@
 }
 
 void DeviceCloudPolicyStoreChromeOS::Store(
     const em::PolicyFetchResponse& policy) {
   // Cancel all pending requests.
   weak_factory_.InvalidateWeakPtrs();
 
   scoped_refptr<chromeos::OwnerKey> owner_key(
       device_settings_service_->GetOwnerKey());
   if (!install_attributes_->IsEnterpriseDevice() ||
-      !device_settings_service_->policy_data() ||
-      !owner_key || !owner_key->public_key()) {
+      !device_settings_service_->policy_data() || !owner_key.get() ||
+      !owner_key->public_key()) {
     status_ = STATUS_BAD_STATE;
     NotifyStoreError();
     return;
   }
 
   scoped_ptr<DeviceCloudPolicyValidator> validator(CreateValidator(policy));
   validator->ValidateSignature(*owner_key->public_key(), true);
   validator->ValidateAgainstCurrentPolicy(
       device_settings_service_->policy_data(),
       CloudPolicyValidatorBase::TIMESTAMP_REQUIRED,
@@ skipping 104 matching lines @@
     case chromeos::DeviceSettingsService::STORE_VALIDATION_ERROR:
     case chromeos::DeviceSettingsService::STORE_TEMP_VALIDATION_ERROR:
       status_ = STATUS_LOAD_ERROR;
       break;
   }
 
   NotifyStoreError();
 }
 
 }  // namespace policy