Clear out some minor TODOs.

BUG=none

Review URL: https://codereview.chromium.org/1047063002

Cr-Commit-Position: refs/heads/master@{#322959}
bool CardUnmaskPromptViews::Accept() {
  if (!controller_)
    return true;

  controller_->OnUnmaskResponse(
      cvc_input_->text(),
      month_input_ ? month_input_->GetTextForRow(month_input_->selected_index())
                   : base::string16(),
      year_input_ ? year_input_->GetTextForRow(year_input_->selected_index())
                  : base::string16(),
      storage_checkbox_ ? storage_checkbox_->checked() : false);
  return false;
}

bool CardUnmaskPromptViews::Accept() {
  if (!controller_)
    return true;

  controller_->OnUnmaskResponse(
      cvc_input_->text(),
      month_input_ ? month_input_->GetTextForRow(month_input_->selected_index())
                   : base::string16(),
      year_input_ ? year_input_->GetTextForRow(year_input_->selected_index())
                  : base::string16(),
      storage_checkbox_ ? storage_checkbox_->checked() : false);
  return false;
}
