Add metrics for usage of permission features from iframes in blink

third_party/WebKit/Source/modules/notifications/Notification.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 66 matching lines @@
         exceptionState.throwTypeError("Illegal constructor.");
         return nullptr;
     }
 
     if (!options.actions().isEmpty()) {
         exceptionState.throwTypeError("Actions are only supported for persistent notifications shown using ServiceWorkerRegistration.showNotification().");
         return nullptr;
     }
 
     String insecureOriginMessage;
-    UseCounter::Feature feature = context->isSecureContext(insecureOriginMessage)
-        ? UseCounter::NotificationSecureOrigin
-        : UseCounter::NotificationInsecureOrigin;
-
-    UseCounter::count(context, feature);
+    if (context->isSecureContext(insecureOriginMessage)) {
+        UseCounter::count(context, UseCounter::NotificationSecureOrigin);
+        if (context->isDocument())
+            UseCounter::countCrossOriginIframe(*toDocument(context),  UseCounter::NotificationAPISecureOriginIframe);
+    } else {
+        UseCounter::count(context, UseCounter::NotificationInsecureOrigin);
+        if (context->isDocument())
+            UseCounter::countCrossOriginIframe(*toDocument(context),  UseCounter::NotificationAPIInsecureOriginIframe);
+    }
 
     WebNotificationData data = createWebNotificationData(context, title, options, exceptionState);
     if (exceptionState.hadException())
         return nullptr;
 
     Notification* notification = new Notification(context, data);
     notification->scheduleShow();
     notification->suspendIfNeeded();
 
     return notification;
@@ skipping 261 matching lines @@
 }
 
 DEFINE_TRACE(Notification)
 {
     visitor->trace(m_asyncRunner);
     RefCountedGarbageCollectedEventTargetWithInlineData<Notification>::trace(visitor);
     ActiveDOMObject::trace(visitor);
 }
 
 } // namespace blink