Add metrics for Safe Browsing blacklist response.

chrome/browser/permissions/permission_uma_util.cc

Index: chrome/browser/permissions/permission_uma_util.cc
diff --git a/chrome/browser/permissions/permission_uma_util.cc b/chrome/browser/permissions/permission_uma_util.cc
index 82792775140b8897d198d9cf5d976795f766daf7..ebc8810809b4ff8dfbfe7e4164184c36bb3288ec 100644
--- a/chrome/browser/permissions/permission_uma_util.cc
+++ b/chrome/browser/permissions/permission_uma_util.cc
@@ -9,6 +9,7 @@
 #include "base/command_line.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/strings/stringprintf.h"
+#include "base/time/time.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/permissions/permission_decision_auto_blocker.h"
 #include "chrome/browser/permissions/permission_manager.h"
@@ -357,6 +358,15 @@ void PermissionUmaUtil::PermissionRevoked(PermissionType permission,
   }
 }
 
+void PermissionUmaUtil::RecordSafeBrowsingResponse(
+    base::TimeDelta response_time,
+    SafeBrowsingResponse response) {
+  UMA_HISTOGRAM_TIMES("Permissions.AutoBlocker.SafeBrowsingResponseTime",
+                      response_time);
+  UMA_HISTOGRAM_ENUMERATION("Permissions.AutoBlocker.SafeBrowsingResponse",
+                            response, SafeBrowsingResponse::RESPONSE_NUM);
+}
+
 void PermissionUmaUtil::PermissionPromptShown(
     const std::vector<PermissionRequest*>& requests) {
   DCHECK(!requests.empty());