UMA metrics for cloud policies.

chrome/browser/policy/device_token_fetcher.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/device_token_fetcher.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/message_loop.h"
+#include "base/metrics/histogram.h"
 #include "chrome/browser/policy/cloud_policy_cache_base.h"
 #include "chrome/browser/policy/device_management_service.h"
+#include "chrome/browser/policy/enterprise_metrics.h"
 #include "chrome/browser/policy/proto/device_management_constants.h"
 #include "chrome/browser/policy/proto/device_management_local.pb.h"
 
 namespace {
 
 // Retry after 5 minutes (with exponential backoff) after token fetch errors.
 const int64 kTokenFetchErrorDelayMilliseconds = 5 * 60 * 1000;
 // Retry after max 3 hours after token fetch errors.
 const int64 kTokenFetchErrorMaxDelayMilliseconds = 3 * 60 * 60 * 1000;
 // For unmanaged devices, check once per day whether they're still unmanaged.
@@ skipping 88 matching lines @@
 }
 
 void DeviceTokenFetcher::RemoveObserver(
     DeviceTokenFetcher::Observer* observer) {
   observer_list_.RemoveObserver(observer);
 }
 
 void DeviceTokenFetcher::HandleRegisterResponse(
     const em::DeviceRegisterResponse& response) {
   if (response.has_device_management_token()) {
+    UMA_HISTOGRAM_ENUMERATION(kMetricToken, kMetricTokenFetchOK,
+                              kMetricTokenSize);
     device_token_ = response.device_management_token();
     SetState(STATE_TOKEN_AVAILABLE);
   } else {
     NOTREACHED();
+    UMA_HISTOGRAM_ENUMERATION(kMetricToken, kMetricTokenFetchBadResponse,
+                              kMetricTokenSize);
     SetState(STATE_ERROR);
   }
 }
 
 void DeviceTokenFetcher::OnError(DeviceManagementBackend::ErrorCode code) {
   switch (code) {
     case DeviceManagementBackend::kErrorServiceManagementNotSupported:
       cache_->SetUnmanaged();
       SetState(STATE_UNMANAGED);
       break;
@@ skipping 102 matching lines @@
     case STATE_UNMANAGED:
     case STATE_ERROR:
     case STATE_TEMPORARY_ERROR:
     case STATE_BAD_AUTH:
       FetchTokenInternal();
       break;
   }
 }
 
 }  // namespace policy