Add more UMAs for Instance ID

google_apis/gcm/engine/gcm_registration_request_handler.cc

Index: google_apis/gcm/engine/gcm_registration_request_handler.cc
diff --git a/google_apis/gcm/engine/gcm_registration_request_handler.cc b/google_apis/gcm/engine/gcm_registration_request_handler.cc
index c0213f3cb066a6ea2320a9753bbae40bba8f360d..9533165d66b6f3206e53f93ab1ab6588887c9fe5 100644
--- a/google_apis/gcm/engine/gcm_registration_request_handler.cc
+++ b/google_apis/gcm/engine/gcm_registration_request_handler.cc
@@ -4,6 +4,7 @@
 
 #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 {
@@ -26,4 +27,20 @@ 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