Add more UMAs for Instance ID

google_apis/gcm/engine/instance_id_get_token_request_handler.cc

 // Copyright 2014 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 "google_apis/gcm/engine/instance_id_get_token_request_handler.h"
 
+#include "base/metrics/histogram.h"
 #include "base/strings/string_number_conversions.h"
 #include "google_apis/gcm/base/gcm_util.h"
 #include "net/url_request/url_request_context_getter.h"
 
 namespace gcm {
 
 namespace {
 
 // Request constants.
 const char kAuthorizedEntityKey[] = "sender";
@@ skipping 29 matching lines @@
   for (auto iter = options_.begin(); iter != options_.end(); ++iter)
     BuildFormEncoding(kOptionKeyPrefix + iter->first, iter->second, body);
   BuildFormEncoding(kGMSVersionKey, base::IntToString(gcm_version_), body);
   BuildFormEncoding(kInstanceIDKey, instance_id_, body);
   BuildFormEncoding(kAuthorizedEntityKey, authorized_entity_, body);
   // TODO(jianli): To work around server bug. To be removed when the server fix
   // is deployed.
   BuildFormEncoding(kSubtypeKey, authorized_entity_, body);
 }
 
+void InstanceIDGetTokenRequestHandler::ReportUMAs(
+    RegistrationRequest::Status status,
+    int retry_count,
+    base::TimeDelta complete_time) {
+  UMA_HISTOGRAM_ENUMERATION("InstanceID.GetToken.RequestStatus",
+                            status,
+                            RegistrationRequest::STATUS_COUNT);
+
+  // Other UMAs are only reported when the request succeeds.
+  if (status != RegistrationRequest::SUCCESS)
+    return;
+
+  UMA_HISTOGRAM_COUNTS("InstanceID.GetToken.RetryCount", retry_count);
+  UMA_HISTOGRAM_TIMES("InstanceID.GetToken.CompleteTime", complete_time);
+}
+
 }  // namespace gcm