revert 22226 as it caused some ui test crashes

chrome/browser/gtk/gtk_chrome_link_button.h

Index: chrome/browser/gtk/gtk_chrome_link_button.h
===================================================================
--- chrome/browser/gtk/gtk_chrome_link_button.h	(revision 22227)
+++ chrome/browser/gtk/gtk_chrome_link_button.h	(working copy)
@@ -40,12 +40,8 @@
   gchar* blue_markup;
   gchar* red_markup;
   gboolean is_blue;
-  gchar* native_markup;
-  gboolean using_native_theme;
   GdkCursor* hand_cursor;
   GdkEventButton* click_button_event;
-  gchar* text;
-  gboolean uses_markup;
 };
 
 struct _GtkChromeLinkButtonClass {
@@ -58,11 +54,6 @@
 // As above, but don't escape markup in the text.
 GtkWidget* gtk_chrome_link_button_new_with_markup(const char* markup);
 
-// Set whether the link button draws natively (using "link-color"). The default
-// is TRUE.
-void gtk_chrome_link_button_set_use_gtk_theme(GtkChromeLinkButton* button,
-                                              gboolean use_gtk);
-
 // Call this from within a "clicked" handler to get the release event that
 // triggered the click. It will return NULL if the click was triggered by a
 // keyboard event.