Base: Switch base_i18n to be a separate dll (component build)

base/i18n/bidi_line_iterator.h

Index: base/i18n/bidi_line_iterator.h
===================================================================
--- base/i18n/bidi_line_iterator.h	(revision 97736)
+++ base/i18n/bidi_line_iterator.h	(working copy)
@@ -9,6 +9,7 @@
 #include "unicode/ubidi.h"
 
 #include "base/basictypes.h"
+#include "base/i18n/base_i18n_export.h"
 #include "base/string16.h"
 
 namespace base {
@@ -17,7 +18,7 @@
 // A simple wrapper class for the bidirectional iterator of ICU.
 // This class uses the bidirectional iterator of ICU to split a line of
 // bidirectional texts into visual runs in its display order.
-class BiDiLineIterator {
+class BASE_I18N_EXPORT BiDiLineIterator {
  public:
   BiDiLineIterator();
   ~BiDiLineIterator();