Remove all blimp engine code

blimp/engine/renderer/blimp_content_renderer_client.h

-// Copyright (c) 2015 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 BLIMP_ENGINE_RENDERER_BLIMP_CONTENT_RENDERER_CLIENT_H_
-#define BLIMP_ENGINE_RENDERER_BLIMP_CONTENT_RENDERER_CLIENT_H_
-
-#include <memory>
-
-#include "base/macros.h"
-#include "content/public/renderer/content_renderer_client.h"
-
-namespace web_cache {
-class WebCacheImpl;
-}
-
-namespace blimp {
-namespace engine {
-
-class BlimpContentRendererClient : public content::ContentRendererClient {
- public:
-  BlimpContentRendererClient();
-  ~BlimpContentRendererClient() override;
-
-  // content::ContentRendererClient implementation.
-  void RenderThreadStarted() override;
-  cc::ImageSerializationProcessor* GetImageSerializationProcessor() override;
-  std::unique_ptr<cc::RemoteCompositorBridge> CreateRemoteCompositorBridge(
-      content::RemoteProtoChannel* remote_proto_channel,
-      scoped_refptr<base::SingleThreadTaskRunner> compositor_main_task_runner)
-      override;
-
- private:
-  // Manages the process-global web cache.
-  std::unique_ptr<web_cache::WebCacheImpl> web_cache_impl_;
-
-  // Provides the functionality to serialize images in SkPicture.
-  std::unique_ptr<cc::ImageSerializationProcessor>
-      image_serialization_processor_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlimpContentRendererClient);
-};
-
-}  // namespace engine
-}  // namespace blimp
-
-#endif  // BLIMP_ENGINE_RENDERER_BLIMP_CONTENT_RENDERER_CLIENT_H_