chromium/chrome/browser/resources/settings/people_page/sync_encryption_options.html

    <style include="cr-shared-style settings-shared">
      #create-password-box {
        margin-bottom: 1em;
      }

      #create-password-box .list-item {
        margin-bottom: var(--cr-form-field-bottom-spacing);
      }

      cr-input {
        --cr-input-width: var(--cr-default-input-max-width);
      }

      .passphrase-reset-icon {
        margin-inline-end: 8px;
      }

      cr-radio-button[name='encrypt-with-passphrase'] {
        align-items: start;
      }
    </style>

    <template is="dom-if" if="[[!syncPrefs.passphraseRequired]]">
      <div id="encryptionRadioGroupContainer" class="list-frame">
        <cr-radio-group
            id="encryptionRadioGroup"
            selected="[[selectedEncryptionRadio_(syncPrefs)]]"
            on-selected-changed="onEncryptionRadioSelectionChanged_"
            disabled$="[[disableEncryptionOptions_]]">
          <cr-radio-button name="encrypt-with-google" class="list-item"
              aria-label="$i18n{encryptWithGoogleCredentialsLabel}">
            $i18n{encryptWithGoogleCredentialsLabel}
          </cr-radio-button>
          <cr-radio-button name="encrypt-with-passphrase"
              class="list-item">
            <span hidden="[[!existingPassphraseLabel]]">
              [[existingPassphraseLabel]]
            </span>
            <span on-click="onLearnMoreClick_"
                hidden="[[existingPassphraseLabel]]">
              $i18nRaw{encryptWithSyncPassphraseLabel}
            </span>
            <template is="dom-if" if="[[creatingNewPassphrase_]]" restamp>
              <div id="create-password-box">
                <div class="list-item">
                  <span>$i18nRaw{passphraseExplanationText}</span>
                </div>
                <cr-input id="passphraseInput" type="password"
                    value="{{passphrase_}}"
                    placeholder="$i18n{passphrasePlaceholder}"
                    error-message="$i18n{emptyPassphraseError}"
                    on-keypress="onNewPassphraseInputKeypress_">
                </cr-input>
                <cr-input id="passphraseConfirmationInput" type="password"
                    value="{{confirmation_}}"
                    placeholder="$i18n{passphraseConfirmationPlaceholder}"
                    error-message="$i18n{mismatchedPassphraseError}"
                    on-keypress="onNewPassphraseInputKeypress_">
                </cr-input>
                <cr-button id="saveNewPassphrase"
                    on-click="onSaveNewPassphraseClick_" class="action-button"
                    disabled="[[!isSaveNewPassphraseEnabled_(
                                  passphrase_, confirmation_)]]">
                  $i18n{save}
                </cr-button>
              </div>
            </template>
          </cr-radio-button>
        </cr-radio-group>
      </div>
    </template>