Make ui/gfx/range a component

ui/gfx/range/range_f.h

 // Copyright 2015 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_RANGE_RANGE_F_H_
 #define UI_GFX_RANGE_RANGE_F_H_
 
 #include <ostream>
 #include <string>
 
-#include "ui/gfx/gfx_export.h"
+#include "ui/gfx/range/gfx_range_export.h"
 #include "ui/gfx/range/range.h"
 
 namespace gfx {
 
 // A float version of Range. RangeF is made of a start and end position; when
 // they are the same, the range is empty. Note that |start_| can be greater
 // than |end_| to respect the directionality of the range.
-class GFX_EXPORT RangeF {
+class GFX_RANGE_EXPORT RangeF {
  public:
   // Creates an empty range {0,0}.
   RangeF();
 
   // Initializes the range with a start and end.
   RangeF(float start, float end);
 
   // Initializes the range with the same start and end positions.
   explicit RangeF(float position);
 
@@ skipping 44 matching lines @@
   Range Ceil() const;
   Range Round() const;
 
   std::string ToString() const;
 
  private:
   float start_;
   float end_;
 };
 
-GFX_EXPORT std::ostream& operator<<(std::ostream& os, const RangeF& range);
+GFX_RANGE_EXPORT std::ostream& operator<<(std::ostream& os,
+                                          const RangeF& range);
 
 }  // namespace gfx
 
 #endif  // UI_GFX_RANGE_RANGE_F_H_