Add right-click user switching tutorial bubble.

chrome/browser/ui/views/profiles/profile_chooser_view.h

Index: chrome/browser/ui/views/profiles/profile_chooser_view.h
diff --git a/chrome/browser/ui/views/profiles/profile_chooser_view.h b/chrome/browser/ui/views/profiles/profile_chooser_view.h
index d9b59812d1169b414a1797ffc4ee645fc86132d6..5874a453fedbbbdb5faecf4e0df1e40de748bd41 100644
--- a/chrome/browser/ui/views/profiles/profile_chooser_view.h
+++ b/chrome/browser/ui/views/profiles/profile_chooser_view.h
@@ -178,9 +178,12 @@ class ProfileChooserView : public content::WebContentsDelegate,
   // or configures sync through the "Settings" link.
   views::View* CreateSigninConfirmationView();
 
-  // Creates a a tutorial card to show the errors in the last Chrome signin.
+  // Creates a tutorial card to show the errors in the last Chrome signin.
   views::View* CreateSigninErrorView();
 
+  // Creates a tutorial card telling the user about right-click user switching.
+  views::View* CreateRightClickTutorialViewIfNeeded();
+
   // Creates a tutorial card. If |stack_button| is true, places the button above
   // the link otherwise places both on the same row with the link left aligned
   // and button right aligned. The method sets |link| to point to the newly