Move sky_viewer into services/sky

sky/viewer/content_handler_impl.h

-// 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.
-
-#ifndef SKY_VIEWER_CONTENT_HANDLER_IMPL_H_
-#define SKY_VIEWER_CONTENT_HANDLER_IMPL_H_
-
-#include "base/message_loop/message_loop.h"
-#include "mojo/public/cpp/bindings/strong_binding.h"
-#include "mojo/public/interfaces/application/shell.mojom.h"
-#include "mojo/services/content_handler/public/interfaces/content_handler.mojom.h"
-
-namespace sky {
-class DocumentView;
-
-class ContentHandlerImpl : public mojo::ContentHandler {
- public:
-  explicit ContentHandlerImpl(
-      mojo::InterfaceRequest<mojo::ContentHandler> request);
-  ~ContentHandlerImpl() override;
-
- private:
-  // Overridden from ContentHandler:
-  void StartApplication(mojo::InterfaceRequest<mojo::Application> application,
-                        mojo::URLResponsePtr response) override;
-
-  mojo::StrongBinding<mojo::ContentHandler> binding_;
-  DISALLOW_COPY_AND_ASSIGN(ContentHandlerImpl);
-};
-
-}  // namespace sky
-
-#endif  // SKY_VIEWER_CONTENT_HANDLER_IMPL_H_