Log the network error for failed DMServer requests.

chrome/browser/policy/device_management_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/policy/device_management_service.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 296 matching lines @@
 void DeviceManagementRequestJobImpl::Run() {
   service_->AddJob(this);
 }
 
 void DeviceManagementRequestJobImpl::HandleResponse(
     const net::URLRequestStatus& status,
     int response_code,
     const net::ResponseCookies& cookies,
     const std::string& data) {
   if (status.status() != net::URLRequestStatus::SUCCESS) {
+    LOG(WARNING) << "DMServer request failed, status: " << status.status()
+                 << ", error: " << status.error();
     ReportError(DM_STATUS_REQUEST_FAILED);
     return;
   }
 
   switch (response_code) {
     case kSuccess: {
       em::DeviceManagementResponse response;
       if (!response.ParseFromString(data)) {
         ReportError(DM_STATUS_RESPONSE_DECODING_ERROR);
         return;
@@ skipping 255 matching lines @@
     }
   }
 
   const JobQueue::iterator elem =
       std::find(queued_jobs_.begin(), queued_jobs_.end(), job);
   if (elem != queued_jobs_.end())
     queued_jobs_.erase(elem);
 }
 
 }  // namespace policy