Implement empty WorkerInternals interface.

content/shell/renderer/layout_test/layout_test_content_renderer_client.h

 // Copyright (c) 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.
 
 #ifndef CONTENT_SHELL_RENDERER_LAYOUT_TEST_LAYOUT_TEST_CONTENT_RENDERER_CLIENT_H_
 #define CONTENT_SHELL_RENDERER_LAYOUT_TEST_LAYOUT_TEST_CONTENT_RENDERER_CLIENT_H_
 
 #include <memory>
 
 #include "content/shell/renderer/shell_content_renderer_client.h"
@@ skipping 18 matching lines @@
       blink::WebRTCPeerConnectionHandlerClient* client) override;
   blink::WebMIDIAccessor* OverrideCreateMIDIAccessor(
       blink::WebMIDIAccessorClient* client) override;
   blink::WebAudioDevice* OverrideCreateAudioDevice(double sample_rate) override;
   blink::WebClipboard* OverrideWebClipboard() override;
   blink::WebThemeEngine* OverrideThemeEngine() override;
   std::unique_ptr<blink::WebAppBannerClient> CreateAppBannerClient(
       RenderFrame* render_frame) override;
   std::unique_ptr<MediaStreamRendererFactory> CreateMediaStreamRendererFactory()
       override;
+  void DidInitializeWorkerContextOnWorkerThread(
+      v8::Local<v8::Context> context) override;
 
  private:
   std::unique_ptr<LayoutTestRenderThreadObserver> shell_observer_;
   std::unique_ptr<MockWebClipboardImpl> clipboard_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_RENDERER_LAYOUT_TEST_LAYOUT_TEST_CONTENT_RENDERER_CLIENT_H_