Setup field trial for one-click signin inforbar.

chrome/browser/ui/views/infobars/confirm_infobar.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 CHROME_BROWSER_UI_VIEWS_INFOBARS_CONFIRM_INFOBAR_H_
 #define CHROME_BROWSER_UI_VIEWS_INFOBARS_CONFIRM_INFOBAR_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "chrome/browser/ui/views/infobars/infobar_view.h"
 #include "ui/views/controls/link_listener.h"
 
 class ConfirmInfoBarDelegate;
 
 namespace views {
 class Label;
 class TextButton;
 }
 
 // An infobar that shows a message, up to two optional buttons, and an optional,
 // right-aligned link.  This is commonly used to do things like:
 // "Would you like to do X?  [Yes]  [No]               _Learn More_ [x]"
 class ConfirmInfoBar : public InfoBarView,
                        public views::LinkListener {
  public:
   ConfirmInfoBar(InfoBarTabHelper* owner, ConfirmInfoBarDelegate* delegate);
 
- private:
+ protected:
   virtual ~ConfirmInfoBar();
 
+  views::TextButton* ok_button() { return ok_button_; }
+
   // InfoBarView:
   virtual void Layout() OVERRIDE;
   virtual void ViewHierarchyChanged(bool is_add,
                                     View* parent,
                                     View* child) OVERRIDE;
   virtual void ButtonPressed(views::Button* sender,
                              const ui::Event& event) OVERRIDE;
   virtual int ContentMinimumWidth() const OVERRIDE;
 
   // views::LinkListener:
   virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE;
 
+ private:
   ConfirmInfoBarDelegate* GetDelegate();
 
   views::Label* label_;
   views::TextButton* ok_button_;
   views::TextButton* cancel_button_;
   views::Link* link_;
 
   DISALLOW_COPY_AND_ASSIGN(ConfirmInfoBar);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_INFOBARS_CONFIRM_INFOBAR_H_