Add use counters for secure/insecure OpenSearch links and registerProtocolHandler

third_party/WebKit/Source/modules/navigatorcontentutils/NavigatorContentUtils.cpp

 /*
  * Copyright (C) 2011, Google Inc. All rights reserved.
  * Copyright (C) 2014, Samsung Electronics. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 13 matching lines @@
  * DAMAGE.
  */
 
 #include "modules/navigatorcontentutils/NavigatorContentUtils.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Navigator.h"
+#include "core/frame/UseCounter.h"
 #include "wtf/HashSet.h"
 #include "wtf/text/StringBuilder.h"
 
 namespace blink {
 
 static HashSet<String>* schemeWhitelist;
 
 static void initCustomSchemeHandlerWhitelist()
 {
     schemeWhitelist = new HashSet<String>;
@@ skipping 113 matching lines @@
 
     Document* document = navigator.frame()->document();
     ASSERT(document);
 
     if (!verifyCustomHandlerURL(*document, url, exceptionState))
         return;
 
     if (!verifyCustomHandlerScheme(scheme, exceptionState))
         return;
 
+    // Count usage; perhaps we can lock this to secure contexts.
+    UseCounter::count(*document, document->isSecureContext() ? UseCounter::RegisterProtocolHandlerSecureOrigin : UseCounter::RegisterProtocolHandlerInsecureOrigin);
+
     NavigatorContentUtils::from(*navigator.frame())->client()->registerProtocolHandler(scheme, document->completeURL(url), title);
 }
 
 static String customHandlersStateString(const NavigatorContentUtilsClient::CustomHandlersState state)
 {
     DEFINE_STATIC_LOCAL(const String, newHandler, ("new"));
     DEFINE_STATIC_LOCAL(const String, registeredHandler, ("registered"));
     DEFINE_STATIC_LOCAL(const String, declinedHandler, ("declined"));
 
     switch (state) {
@@ skipping 51 matching lines @@
 {
     return "NavigatorContentUtils";
 }
 
 void provideNavigatorContentUtilsTo(LocalFrame& frame, NavigatorContentUtilsClient* client)
 {
     NavigatorContentUtils::provideTo(frame, NavigatorContentUtils::supplementName(), NavigatorContentUtils::create(client));
 }
 
 } // namespace blink