Add InitWidgets() phase for GTK infobars.

chrome/browser/ui/gtk/infobars/translate_infobar_base_gtk.h

Index: chrome/browser/ui/gtk/infobars/translate_infobar_base_gtk.h
===================================================================
--- chrome/browser/ui/gtk/infobars/translate_infobar_base_gtk.h	(revision 194662)
+++ chrome/browser/ui/gtk/infobars/translate_infobar_base_gtk.h	(working copy)
@@ -19,15 +19,12 @@
                        TranslateInfoBarDelegate* delegate);
   virtual ~TranslateInfoBarBase();
 
-  // Initializes the infobar widgets. Should be called after the object has been
-  // created.
-  virtual void Init();
-
   // Overridden from InfoBar:
   virtual void GetTopColor(InfoBarDelegate::Type type,
                            double* r, double* g, double* b) OVERRIDE;
   virtual void GetBottomColor(InfoBarDelegate::Type type,
                               double* r, double* g, double* b) OVERRIDE;
+  virtual void InitWidgets() OVERRIDE;
 
   // Overridden from ui::AnimationDelegate:
   virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE;