Introduce mock test system for navigator content utils

Source/modules/navigatorcontentutils/testing/InternalsNavigatorContentUtils.cpp

+// Copyright 2014 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 "config.h"
+#include "InternalsNavigatorContentUtils.h"
+
+#include "core/dom/Document.h"
+#include "core/testing/Internals.h"
+#include "modules/navigatorcontentutils/NavigatorContentUtils.h"
+#include "modules/navigatorcontentutils/testing/NavigatorContentUtilsClientMock.h"
+
+namespace WebCore {
+
+void InternalsNavigatorContentUtils::setNavigatorContentUtilsClientMock(Internals&, Document* document)
+{
+    ASSERT(document && document->page());
+    NavigatorContentUtils* navigatorContentUtils = NavigatorContentUtils::from(*document->page());
+    navigatorContentUtils->setClientForTest(adoptPtr(new NavigatorContentUtilsClientMock()));
+}
+
+} // namespace WebCore