void AddAboutStrings(content::WebUIDataSource* html_source) {
  LocalizedString localized_strings[] = {
    {"aboutProductLogoAlt", IDS_SHORT_PRODUCT_LOGO_ALT_TEXT},
    {"aboutPageTitle", IDS_SETTINGS_ABOUT_PROGRAM},
#if defined(OS_CHROMEOS)
    {"aboutProductTitle", IDS_PRODUCT_OS_NAME},
#else
    {"aboutProductTitle", IDS_PRODUCT_NAME},
#endif
    {"aboutGetHelpUsingChrome", IDS_SETTINGS_GET_HELP_USING_CHROME},

#if defined(GOOGLE_CHROME_BUILD)
    {"aboutReportAnIssue", IDS_SETTINGS_ABOUT_PAGE_REPORT_AN_ISSUE},
#endif

    {"aboutRelaunch", IDS_SETTINGS_ABOUT_PAGE_RELAUNCH},
    {"aboutUpgradeCheckStarted", IDS_SETTINGS_ABOUT_UPGRADE_CHECK_STARTED},
    {"aboutUpgradeRelaunch", IDS_SETTINGS_UPGRADE_SUCCESSFUL_RELAUNCH},
    {"aboutUpgradeUpdating", IDS_SETTINGS_UPGRADE_UPDATING},
    {"aboutUpgradeUpdatingPercent", IDS_SETTINGS_UPGRADE_UPDATING_PERCENT},

#if defined(OS_CHROMEOS)
    {"aboutArcVersionLabel", IDS_SETTINGS_ABOUT_PAGE_ARC_VERSION},
    {"aboutBuildDateLabel", IDS_VERSION_UI_BUILD_DATE},
    {"aboutChannelBeta", IDS_SETTINGS_ABOUT_PAGE_CURRENT_CHANNEL_BETA},
    {"aboutChannelCanary", IDS_SETTINGS_ABOUT_PAGE_CURRENT_CHANNEL_CANARY},
    {"aboutChannelDev", IDS_SETTINGS_ABOUT_PAGE_CURRENT_CHANNEL_DEV},
    {"aboutChannelLabel", IDS_SETTINGS_ABOUT_PAGE_CHANNEL},
    {"aboutChannelStable", IDS_SETTINGS_ABOUT_PAGE_CURRENT_CHANNEL_STABLE},
    {"aboutCheckForUpdates", IDS_SETTINGS_ABOUT_PAGE_CHECK_FOR_UPDATES},
    {"aboutCommandLineLabel", IDS_VERSION_UI_COMMAND_LINE},
    {"aboutCurrentlyOnChannel", IDS_SETTINGS_ABOUT_PAGE_CURRENT_CHANNEL},
    {"aboutDetailedBuildInfo", IDS_SETTINGS_ABOUT_PAGE_DETAILED_BUILD_INFO},
    {"aboutFirmwareLabel", IDS_SETTINGS_ABOUT_PAGE_FIRMWARE},
    {"aboutPlatformLabel", IDS_SETTINGS_ABOUT_PAGE_PLATFORM},
    {"aboutRelaunchAndPowerwash",
     IDS_SETTINGS_ABOUT_PAGE_RELAUNCH_AND_POWERWASH},
    {"aboutUpgradeUpdatingChannelSwitch",
     IDS_SETTINGS_UPGRADE_UPDATING_CHANNEL_SWITCH},
    {"aboutUpgradeSuccessChannelSwitch",
     IDS_SETTINGS_UPGRADE_SUCCESSFUL_CHANNEL_SWITCH},
    {"aboutUserAgentLabel", IDS_VERSION_UI_USER_AGENT},
    {"aboutTPMFirmwareUpdateTitle",
     IDS_SETTINGS_ABOUT_TPM_FIRMWARE_UPDATE_TITLE},
    {"aboutTPMFirmwareUpdateDescription",
     IDS_SETTINGS_ABOUT_TPM_FIRMWARE_UPDATE_DESCRIPTION},

    {"aboutChangeChannel", IDS_SETTINGS_ABOUT_PAGE_CHANGE_CHANNEL},
    {"aboutChangeChannelAndPowerwash",
     IDS_SETTINGS_ABOUT_PAGE_CHANGE_CHANNEL_AND_POWERWASH},
    {"aboutDelayedWarningMessage",
     IDS_SETTINGS_ABOUT_PAGE_DELAYED_WARNING_MESSAGE},
    {"aboutDelayedWarningTitle", IDS_SETTINGS_ABOUT_PAGE_DELAYED_WARNING_TITLE},
    {"aboutPowerwashWarningMessage",
     IDS_SETTINGS_ABOUT_PAGE_POWERWASH_WARNING_MESSAGE},
    {"aboutPowerwashWarningTitle",
     IDS_SETTINGS_ABOUT_PAGE_POWERWASH_WARNING_TITLE},
    {"aboutUnstableWarningMessage",
     IDS_SETTINGS_ABOUT_PAGE_UNSTABLE_WARNING_MESSAGE},
    {"aboutUnstableWarningTitle",
     IDS_SETTINGS_ABOUT_PAGE_UNSTABLE_WARNING_TITLE},
    {"aboutChannelDialogBeta", IDS_SETTINGS_ABOUT_PAGE_DIALOG_CHANNEL_BETA},
    {"aboutChannelDialogDev", IDS_SETTINGS_ABOUT_PAGE_DIALOG_CHANNEL_DEV},
    {"aboutChannelDialogStable", IDS_SETTINGS_ABOUT_PAGE_DIALOG_CHANNEL_STABLE},

    {"aboutUpdateWarningMessage",
     IDS_SETTINGS_ABOUT_PAGE_UPDATE_WARNING_MESSAGE},
    {"aboutUpdateWarningTitle", IDS_SETTINGS_ABOUT_PAGE_UPDATE_WARNING_TITLE},
    {"aboutUpdateWarningContinue",
     IDS_SETTINGS_ABOUT_PAGE_UPDATE_WARNING_CONTINUE_BUTTON},
#endif  // defined(OS_CHROMEOS)
  };
  AddLocalizedStringsBulk(html_source, localized_strings,
                          arraysize(localized_strings));

  html_source->AddString(
      "aboutUpgradeUpToDate",
#if defined(OS_CHROMEOS)
      ui::SubstituteChromeOSDeviceType(IDS_SETTINGS_UPGRADE_UP_TO_DATE));
#else
      l10n_util::GetStringUTF16(IDS_SETTINGS_UPGRADE_UP_TO_DATE));
#endif

#if defined(OS_CHROMEOS)
  html_source->AddString("aboutTPMFirmwareUpdateLearnMoreURL",
                         chrome::kTPMFirmwareUpdateLearnMoreURL);
#endif
}

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.