Remove last dependencies on ui/base from ui/gfx

ui/gfx/rect_base.h

 // Copyright (c) 2012 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.
 
 // A template for a simple rectangle class.  The containment semantics
 // are array-like; that is, the coordinate (x, y) is considered to be
 // contained by the rectangle, but the coordinate (x + width, y) is not.
 // The class will happily let you create malformed rectangles (that is,
 // rectangles with negative width and/or height), but there will be assertions
 // in the operations (such as Contains()) to complain in this case.
 
 #ifndef UI_GFX_RECT_BASE_H_
 #define UI_GFX_RECT_BASE_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 
 namespace gfx {
 
 template<typename Class,
          typename PointClass,
          typename SizeClass,
          typename InsetsClass,
          typename VectorClass,
          typename Type>
-class UI_EXPORT RectBase {
+class GFX_EXPORT RectBase {
  public:
   Type x() const { return origin_.x(); }
   void set_x(Type x) { origin_.set_x(x); }
 
   Type y() const { return origin_.y(); }
   void set_y(Type y) { origin_.set_y(y); }
 
   Type width() const { return size_.width(); }
   void set_width(Type width) { size_.set_width(width); }
 
@@ skipping 121 matching lines @@
   ~RectBase() {}
 
  private:
   PointClass origin_;
   SizeClass size_;
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_RECT_BASE_H_