Refactor cros library code into central location and have the UI elements obs...

views/controls/button/text_button.cc

Index: views/controls/button/text_button.cc
===================================================================
--- views/controls/button/text_button.cc	(revision 28124)
+++ views/controls/button/text_button.cc	(working copy)
@@ -4,6 +4,8 @@
 
 #include "views/controls/button/text_button.h"
 
+#include <algorithm>
+
 #include "app/gfx/canvas.h"
 #include "app/l10n_util.h"
 #include "app/throb_animation.h"
@@ -184,6 +186,10 @@
   icon_ = icon;
 }
 
+void TextButton::SetFont(const gfx::Font& font) {
+  font_ = font;
+}
+
 void TextButton::SetEnabledColor(SkColor color) {
   color_enabled_ = color;
   UpdateColor();