[cros] Update OOBE network error message.

BUG=chromium-os:8172
TEST=N/A

Review URL: http://codereview.chromium.org/6303008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@71595 0039d316-1c4b-4281-b951-d872f2087c98
void NetworkScreen::OnHelpLinkActivated() {
  ClearErrors();
  if (!help_app_.get())
    help_app_.reset(new HelpAppLauncher(view()->GetNativeWindow()));
  help_app_->ShowHelpTopic(HelpAppLauncher::HELP_CONNECTIVITY);
}

void NetworkScreen::OnHelpLinkActivated() {
  ClearErrors();
  if (!help_app_.get())
    help_app_.reset(new HelpAppLauncher(view()->GetNativeWindow()));
  help_app_->ShowHelpTopic(HelpAppLauncher::HELP_CONNECTIVITY);
}
