Adds a gfx_export.h to ui/gfx and converts all code in ui/gfx to

ui/gfx/point_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.
 
 #ifndef UI_GFX_POINT_BASE_H_
 #define UI_GFX_POINT_BASE_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "build/build_config.h"
-#include "ui/base/ui_export.h"
+#include "ui/gfx/gfx_export.h"
 
 namespace gfx {
 
 // A point has an x and y coordinate.
 template<typename Class, typename Type, typename VectorClass>
 class UI_EXPORT PointBase {
  public:
   Type x() const { return x_; }
   Type y() const { return y_; }
 
@@ skipping 55 matching lines @@
   ~PointBase() {}
 
  private:
   Type x_;
   Type y_;
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_POINT_BASE_H_