Impl mus::mojom::GpuService to enable using Chrome IPC version gpu CmdBuf in mus

components/mus/public/cpp/window_surface.h

 // Copyright 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 COMPONENTS_MUS_PUBLIC_CPP_WINDOW_SURFACE_H_
 #define COMPONENTS_MUS_PUBLIC_CPP_WINDOW_SURFACE_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/observer_list.h"
 #include "base/threading/thread_checker.h"
+#include "components/mus/public/cpp/mus_public_export.h"
 #include "components/mus/public/interfaces/compositor_frame.mojom.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "mojo/public/cpp/bindings/interface_ptr_info.h"
 
 namespace mus {
 
 class WindowSurfaceBinding;
 class WindowSurfaceClient;
 class Window;
 
 // A WindowSurface is wrapper to simplify submitting CompositorFrames to
 // Windows, and receiving ReturnedResources.
-class WindowSurface : public mojom::SurfaceClient {
+class MUS_PUBLIC_EXPORT WindowSurface : public mojom::SurfaceClient {
  public:
   // static
   static std::unique_ptr<WindowSurface> Create(
       std::unique_ptr<WindowSurfaceBinding>* surface_binding);
 
   ~WindowSurface() override;
 
   // Called to indicate that the current thread has assumed control of this
   // object.
   void BindToThread();
@@ skipping 19 matching lines @@
   mojom::SurfacePtr surface_;
   std::unique_ptr<mojo::Binding<mojom::SurfaceClient>> client_binding_;
   std::unique_ptr<base::ThreadChecker> thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowSurface);
 };
 
 // A WindowSurfaceBinding is a bundle of mojo interfaces that are to be used by
 // or implemented by the Mus window server when passed into
 // Window::AttachSurface. WindowSurfaceBinding has no standalone functionality.
-class WindowSurfaceBinding {
+class MUS_PUBLIC_EXPORT WindowSurfaceBinding {
  public:
   ~WindowSurfaceBinding();
 
  private:
   friend class WindowSurface;
   friend class Window;
 
   WindowSurfaceBinding(
       mojo::InterfaceRequest<mojom::Surface> surface_request,
       mojo::InterfacePtrInfo<mojom::SurfaceClient> surface_client);
 
   mojo::InterfaceRequest<mojom::Surface> surface_request_;
   mojo::InterfacePtrInfo<mojom::SurfaceClient> surface_client_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowSurfaceBinding);
 };
 
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_PUBLIC_CPP_WINDOW_SURFACE_H_