Update protobuf definitions for ChromeOS device policy support

chrome/browser/policy/cloud_policy_controller.cc

 // Copyright (c) 2011 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/policy/cloud_policy_controller.h"
 
 #include <algorithm>
 
 #include "base/message_loop.h"
 #include "base/rand_util.h"
@@ skipping 194 matching lines @@
   if (identity_strategy_->GetCredentials(&username, &auth_token) &&
       CanBeInManagedDomain(username)) {
     token_fetcher_->FetchToken(auth_token, device_id, policy_type, machine_id);
   }
 }
 
 void CloudPolicyController::SendPolicyRequest() {
   DCHECK(!identity_strategy_->GetDeviceToken().empty());
   em::DevicePolicyRequest policy_request;
   em::PolicyFetchRequest* fetch_request = policy_request.add_request();
-  fetch_request->set_signature_type(em::PolicyFetchRequest::X509);
+  fetch_request->set_signature_type(em::PolicyFetchRequest::SHA1_RSA);
   fetch_request->set_policy_type(identity_strategy_->GetPolicyType());
   if (!cache_->is_unmanaged() &&
       !cache_->last_policy_refresh_time().is_null()) {
     base::TimeDelta timestamp =
         cache_->last_policy_refresh_time() - base::Time::UnixEpoch();
     fetch_request->set_timestamp(timestamp.InMilliseconds());
   }
 
   // TODO(gfeher): Remove the following block when the server is migrated.
   // Set fields for the old protocol.
@@ skipping 88 matching lines @@
 }
 
 int64 CloudPolicyController::GetRefreshDelay() {
   int64 deviation = (policy_refresh_deviation_factor_percent_ *
                      policy_refresh_rate_ms_) / 100;
   deviation = std::min(deviation, policy_refresh_deviation_max_ms_);
   return policy_refresh_rate_ms_ - base::RandGenerator(deviation + 1);
 }
 
 }  // namespace policy