html_viewer: Make sure window.internals is set-up correctly in layout-tests.

content/shell/renderer/layout_test/blink_test_runner.cc

 // Copyright (c) 2012 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 "content/shell/renderer/layout_test/blink_test_runner.h"
 
 #include <algorithm>
 #include <clocale>
 #include <cmath>
 
@@ skipping 682 matching lines @@
     blink::WebLocalFrame* frame, const blink::WebPluginParams& params) {
   if (params.mimeType != "application/x-plugin-placeholder-test")
     return nullptr;
 
   plugins::PluginPlaceholder* placeholder =
       new plugins::PluginPlaceholder(render_view()->GetMainRenderFrame(), frame,
                                      params, "<div>Test content</div>");
   return placeholder->plugin();
 }
 
+void BlinkTestRunner::OnWebTestProxyBaseDestroy(
+    test_runner::WebTestProxyBase* proxy) {
+}
+
 // RenderViewObserver  --------------------------------------------------------
 
 void BlinkTestRunner::DidClearWindowObject(WebLocalFrame* frame) {
   WebTestingSupport::injectInternalsObject(frame);
   LayoutTestRenderProcessObserver::GetInstance()->test_interfaces()->BindTo(
       frame);
   GCController::Install(frame);
 }
 
 bool BlinkTestRunner::OnMessageReceived(const IPC::Message& message) {
@@ skipping 187 matching lines @@
 
   leak_detector_->TryLeakDetection(main_frame);
 }
 
 void BlinkTestRunner::ReportLeakDetectionResult(
     const LeakDetectionResult& report) {
   Send(new ShellViewHostMsg_LeakDetectionDone(routing_id(), report));
 }
 
 }  // namespace content