Fix logging of string16s from gfx namespace on Windows.

ui/base/range/range.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_BASE_RANGE_RANGE_H_
 #define UI_BASE_RANGE_RANGE_H_
 #pragma once
 
-#include <iosfwd>
+#include <string>
 
 #include "base/basictypes.h"
 #include "ui/base/ui_export.h"
 
 #if defined(OS_MACOSX)
 #if __OBJC__
 #import <Foundation/Foundation.h>
 #else
 typedef struct _NSRange NSRange;
 #endif
@@ skipping 76 matching lines @@
   Range& operator=(const NSRange& range);
 
   // NSRange does not store the directionality of a range, so if this
   // is_reversed(), the range will get flipped when converted to an NSRange.
   NSRange ToNSRange() const;
 #elif defined(OS_WIN)
   CHARRANGE ToCHARRANGE() const;
 #endif
   // GTK+ has no concept of a range.
 
+  std::string ToString() const;
+
  private:
   size_t start_;
   size_t end_;
 };
 
-UI_EXPORT std::ostream& operator<<(std::ostream& out, const ui::Range& range);
-
-}  // namespace gfx
+}  // namespace ui
 
 #endif  // UI_BASE_RANGE_RANGE_H_