Revert cross-origin auth prompt blocking.
BUG=174129

Review URL: https://chromiumcodereview.appspot.com/12183030

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@181113 0039d316-1c4b-4281-b951-d872f2087c98
void LoginPromptBrowserTestObserver::RemoveHandler(LoginHandler* handler) {
  std::list<LoginHandler*>::iterator i = std::find(handlers_.begin(),
                                                   handlers_.end(),
                                                   handler);
  EXPECT_TRUE(i != handlers_.end());
  if (i != handlers_.end())
    handlers_.erase(i);
}

void LoginPromptBrowserTestObserver::RemoveHandler(LoginHandler* handler) {
  std::list<LoginHandler*>::iterator i = std::find(handlers_.begin(),
                                                   handlers_.end(),
                                                   handler);
  EXPECT_TRUE(i != handlers_.end());
  if (i != handlers_.end())
    handlers_.erase(i);
}
