Rebase the MessageBubble on the new views bubble.

chrome/browser/chromeos/login/screen_lock_view.h

Index: chrome/browser/chromeos/login/screen_lock_view.h
diff --git a/chrome/browser/chromeos/login/screen_lock_view.h b/chrome/browser/chromeos/login/screen_lock_view.h
index 86ed913bfed7c2e96eca42ec7eab316ef151713d..fb3e60b677bf2344bf0fe29e3be18ff88a8bfaed 100644
--- a/chrome/browser/chromeos/login/screen_lock_view.h
+++ b/chrome/browser/chromeos/login/screen_lock_view.h
@@ -40,9 +40,6 @@ class ScreenLockView : public ThrobberHostView,
   // Enable/Disable signout button.
   void SetSignoutEnabled(bool enabled);
 
-  // Returns the bounds of the password field in ScreenLocker's coordinate.
-  gfx::Rect GetPasswordBoundsRelativeTo(const views::View* view);
-
   // views::View:
   virtual void SetEnabled(bool enabled);
   virtual void Layout();
@@ -63,6 +60,8 @@ class ScreenLockView : public ThrobberHostView,
   virtual void OnSignout();
   virtual bool IsUserSelected() const;
 
+  views::Textfield* password_field() { return password_field_; }
+
  private:
   friend class test::ScreenLockerTester;