Make ProfileSigninConfirmationHelper delete itself instead of being refcounted.

chrome/browser/ui/sync/profile_signin_confirmation_helper.h

Index: chrome/browser/ui/sync/profile_signin_confirmation_helper.h
diff --git a/chrome/browser/ui/sync/profile_signin_confirmation_helper.h b/chrome/browser/ui/sync/profile_signin_confirmation_helper.h
index d0d0c21cd12d54c9794221db4bb3fdde0f5cac08..949bcd2e134680fa029e6b51e05f90e3ef4f2766 100644
--- a/chrome/browser/ui/sync/profile_signin_confirmation_helper.h
+++ b/chrome/browser/ui/sync/profile_signin_confirmation_helper.h
@@ -21,10 +21,12 @@ SkColor GetSigninConfirmationPromptBarColor(SkAlpha alpha);
 
 // Determines whether the browser has ever been shutdown since the
 // profile was created.
+// Exposed for testing.
 bool HasBeenShutdown(Profile* profile);
 
 // Determines whether there are any synced extensions installed (that
 // shouldn't be ignored).
+// Exposed for testing.
 bool HasSyncedExtensions(Profile* profile);
 
 // Determines whether the user should be prompted to create a new