services/ui: Create a proper component for the client-lib.

services/ui/public/cpp/window_surface.h

Index: services/ui/public/cpp/window_surface.h
diff --git a/services/ui/public/cpp/window_surface.h b/services/ui/public/cpp/window_surface.h
index 68d84cfd7949bc03abcb580deb4d2a49d6f604d8..117c47453cce95b40cbb45288cc62e9ffd897094 100644
--- a/services/ui/public/cpp/window_surface.h
+++ b/services/ui/public/cpp/window_surface.h
@@ -13,6 +13,7 @@
 #include "base/threading/thread_checker.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "mojo/public/cpp/bindings/interface_ptr_info.h"
+#include "services/ui/public/cpp/ui_export.h"
 #include "services/ui/public/interfaces/surface.mojom.h"
 
 namespace ui {
@@ -23,7 +24,7 @@ class Window;
 
 // A WindowSurface is wrapper to simplify submitting CompositorFrames to
 // Windows, and receiving ReturnedResources.
-class WindowSurface : public mojom::SurfaceClient {
+class UI_EXPORT WindowSurface : NON_EXPORTED_BASE(public mojom::SurfaceClient) {
  public:
   // static
   static std::unique_ptr<WindowSurface> Create(
@@ -62,7 +63,7 @@ class WindowSurface : public mojom::SurfaceClient {
 // 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 UI_EXPORT WindowSurfaceBinding {
  public:
   ~WindowSurfaceBinding();