Replace remaining ASSERT with DCHECK|DCHECK_FOO in modules

third_party/WebKit/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 "InternalsNavigatorContentUtils.h"
 
 #include "core/dom/Document.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/testing/Internals.h"
 #include "modules/navigatorcontentutils/NavigatorContentUtils.h"
 #include "modules/navigatorcontentutils/testing/NavigatorContentUtilsClientMock.h"
 
 namespace blink {
 
 void InternalsNavigatorContentUtils::setNavigatorContentUtilsClientMock(
     Internals&,
     Document* document) {
-  ASSERT(document && document->GetPage());
+  DCHECK(document);
+  DCHECK(document->GetPage());
   NavigatorContentUtils* navigator_content_utils =
       NavigatorContentUtils::From(*document->domWindow()->navigator());
   navigator_content_utils->SetClientForTest(
       NavigatorContentUtilsClientMock::Create());
 }
 
 }  // namespace blink