Add more UMAs for Instance ID

google_apis/gcm/engine/gcm_registration_request_handler.cc

 // Copyright 2015 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/gcm_registration_request_handler.h"
 
+#include "base/metrics/histogram.h"
 #include "google_apis/gcm/base/gcm_util.h"
 
 namespace gcm {
 
 namespace {
 
 // Request constants.
 const char kSenderKey[] = "sender";
 
 }  // namespace
 
 GCMRegistrationRequestHandler::GCMRegistrationRequestHandler(
     const std::string& senders)
     : senders_(senders) {
 }
 
 GCMRegistrationRequestHandler::~GCMRegistrationRequestHandler() {}
 
 void GCMRegistrationRequestHandler::BuildRequestBody(std::string* body){
   BuildFormEncoding(kSenderKey, senders_, body);
 }
 
+void GCMRegistrationRequestHandler::ReportUMAs(
+    RegistrationRequest::Status status,
+    int retry_count,
+    base::TimeDelta complete_time) {
+  UMA_HISTOGRAM_ENUMERATION("GCM.RegistrationRequestStatus",
+                            status,
+                            RegistrationRequest::STATUS_COUNT);
+
+  // Other UMAs are only reported when the request succeeds.
+  if (status != RegistrationRequest::SUCCESS)
+    return;
+
+  UMA_HISTOGRAM_COUNTS("GCM.RegistrationRetryCount", retry_count);
+  UMA_HISTOGRAM_TIMES("GCM.RegistrationCompleteTime", complete_time);
+}
+
 }  // namespace gcm