Remove last dependencies on ui/base from ui/gfx

ui/gfx/point.h

Index: ui/gfx/point.h
diff --git a/ui/gfx/point.h b/ui/gfx/point.h
index cb233da5274a0084b4691dc89ab00f76f7beab79..020c4e1251afcb4ff9caa9a70b3fd1f7cf4cabac 100644
--- a/ui/gfx/point.h
+++ b/ui/gfx/point.h
@@ -22,7 +22,7 @@ typedef struct tagPOINT POINT;
 namespace gfx {
 
 // A point has an x and y coordinate.
-class UI_EXPORT Point : public PointBase<Point, int, Vector2d> {
+class GFX_EXPORT Point : public PointBase<Point, int, Vector2d> {
  public:
   Point() : PointBase<Point, int, Vector2d>(0, 0) {}
   Point(int x, int y) : PointBase<Point, int, Vector2d>(x, y) {}