Rename WEB_ACTION_ENABLED to INSTANT_APPS_ENABLED

                mWebAction.setTitle(R.string.web_action_enable_title);

                mWebAction.setSummary(R.string.web_action_enable_summary);

                mWebAction.setChecked(Settings.Secure.getInt(getContentResolver(),

                        Settings.Secure.WEB_ACTION_ENABLED, 1) != 0);

                        Settings.Secure.INSTANT_APPS_ENABLED, 1) != 0);

                mWebAction.setOnPreferenceChangeListener(this);

                webActionCategory.addPreference(mWebAction);

            boolean checked = (boolean) newValue;

            Settings.Secure.putInt(

                    getContentResolver(),

                    Settings.Secure.WEB_ACTION_ENABLED, checked ? 1 : 0);

            mWebAction.setChecked(checked);

                    Settings.Secure.INSTANT_APPS_ENABLED, checked ? 1 : 0);

            return true;

        }

        return false;