Log the network error for failed DMServer requests.

chrome/browser/policy/device_management_service.cc

Index: chrome/browser/policy/device_management_service.cc
diff --git a/chrome/browser/policy/device_management_service.cc b/chrome/browser/policy/device_management_service.cc
index 73870c6fccd88d19fb7aa998bdfa414143e3eb93..aebc8a62dc23dcf3e114039c7c2ce121c594fd17 100644
--- a/chrome/browser/policy/device_management_service.cc
+++ b/chrome/browser/policy/device_management_service.cc
@@ -314,6 +314,8 @@ void DeviceManagementRequestJobImpl::HandleResponse(
     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;
   }