Introduce ui.dll / libui.so for the component build.

ui/base/range/range.h

 // Copyright (c) 2011 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_H_
 #define UI_GFX_RANGE_H_
 
 #include <iosfwd>
 
 #include "base/basictypes.h"
+#include "ui/ui_api.h"
 
 #if defined(OS_MACOSX)
 #if __OBJC__
 #import <Foundation/Foundation.h>
 #else
 typedef struct _NSRange NSRange;
 #endif
 #endif  // defined(OS_MACOSX)
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <richedit.h>
 #endif
 
 namespace ui {
 
 // A Range contains two integer values that represent a numeric range, like the
 // range of characters in a text selection. A range is made of a start and end
 // position; when they are the same, the Range is akin to a caret. Note that
 // |start_| can be greater than |end_| to respect the directionality of the
 // range.
-class Range {
+class UI_API Range {
  public:
   // Creates an empty range {0,0}.
   Range();
 
   // Initializes the range with a start and end.
   Range(size_t start, size_t end);
 
   // Initializes the range with the same start and end positions.
   explicit Range(size_t position);
 
@@ skipping 55 matching lines @@
 #elif defined(OS_WIN)
   CHARRANGE ToCHARRANGE() const;
 #endif
   // GTK+ has no concept of a range.
 
  private:
   size_t start_;
   size_t end_;
 };
 
-std::ostream& operator<<(std::ostream& out, const ui::Range& range);
+UI_API std::ostream& operator<<(std::ostream& out, const ui::Range& range);
 
 }  // namespace gfx
 
 #endif  // UI_GFX_RANGE_H_