Setup field trial for one-click signin inforbar.

chrome/browser/ui/views/infobars/confirm_infobar.h

Index: chrome/browser/ui/views/infobars/confirm_infobar.h
diff --git a/chrome/browser/ui/views/infobars/confirm_infobar.h b/chrome/browser/ui/views/infobars/confirm_infobar.h
index 35835470496ad5170dc3883de0cc1f2c9d9e2ab2..02cf70e302934cdb75f91d1dff1e280c0e23b304 100644
--- a/chrome/browser/ui/views/infobars/confirm_infobar.h
+++ b/chrome/browser/ui/views/infobars/confirm_infobar.h
@@ -25,9 +25,11 @@ class ConfirmInfoBar : public InfoBarView,
  public:
   ConfirmInfoBar(InfoBarTabHelper* owner, ConfirmInfoBarDelegate* delegate);
 
- private:
+ protected:

[Peter Kasting, 2012/09/11 23:02:07]

Nit: I suggest adding a comment like:

// TODO(rogerta): These only need to be protected due to the
OneClickLoginInfoBar experiment and can be made private once that's removed.

[Roger Tawa OOO till Jul 10th, 2012/09/12 15:07:14]

Done.

   virtual ~ConfirmInfoBar();
 
+  views::TextButton* ok_button() { return ok_button_; }
+
   // InfoBarView:

[Peter Kasting, 2012/09/11 23:02:07]

Nit: Looks like only the destructor, ok_button(), and ViewHierarchyChanged()
need to be protected, the others can remain private.

[Roger Tawa OOO till Jul 10th, 2012/09/12 15:07:14]

Right, but I didn't want to mess up the declaration order of the interface
implementation and break up the methods.  I think I'll leave it like this if no
objections.

[Peter Kasting, 2012/09/12 17:21:24]

It doesn't matter much if we expect to rip this back out again shortly.  If we
wanted to leave things for any length of time I'd probably be more inclined to
reorder things.  Up to you.

   virtual void Layout() OVERRIDE;
   virtual void ViewHierarchyChanged(bool is_add,
@@ -40,6 +42,7 @@ class ConfirmInfoBar : public InfoBarView,
   // views::LinkListener:
   virtual void LinkClicked(views::Link* source, int event_flags) OVERRIDE;
 
+ private:
   ConfirmInfoBarDelegate* GetDelegate();
 
   views::Label* label_;