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

services/ui/public/cpp/bitmap_uploader.h

Index: services/ui/public/cpp/bitmap_uploader.h
diff --git a/services/ui/public/cpp/bitmap_uploader.h b/services/ui/public/cpp/bitmap_uploader.h
index 1f0898e8bf97c9bf8ea0a04c8616545509991b98..22226e41e4b53e13db5379b775e00e4880c86b82 100644
--- a/services/ui/public/cpp/bitmap_uploader.h
+++ b/services/ui/public/cpp/bitmap_uploader.h
@@ -14,6 +14,7 @@
 #include "base/macros.h"
 #include "gpu/GLES2/gl2chromium.h"
 #include "gpu/GLES2/gl2extchromium.h"
+#include "services/ui/public/cpp/ui_export.h"
 #include "services/ui/public/cpp/window_surface.h"
 #include "services/ui/public/cpp/window_surface_client.h"
 #include "services/ui/public/interfaces/surface.mojom.h"
@@ -21,11 +22,11 @@
 namespace ui {
 class GLES2Context;
 
-extern const char kBitmapUploaderForAcceleratedWidget[];
+extern const char UI_EXPORT kBitmapUploaderForAcceleratedWidget[];
 
 // BitmapUploader is useful if you want to draw a bitmap or color in a
 // Window.
-class BitmapUploader : public WindowSurfaceClient {
+class UI_EXPORT BitmapUploader : public WindowSurfaceClient {
  public:
   explicit BitmapUploader(Window* window);
   ~BitmapUploader() override;