Add local protection setting to chrome://settings/system

chrome/browser/resources/settings/system_page/system_page.html

 <link rel="import" href="chrome://resources/html/polymer.html">
 
 <link rel="import" href="chrome://resources/cr_elements/policy/cr_policy_pref_indicator.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button-light.html">
 <link rel="import" href="../controls/extension_controlled_indicator.html">
 <link rel="import" href="../controls/settings_toggle_button.html">
 <link rel="import" href="../lifetime_browser_proxy.html">
 <link rel="import" href="../prefs/prefs.html">
 <link rel="import" href="../settings_shared_css.html">
@@ skipping 15 matching lines @@
           pref="{{prefs.hardware_acceleration_mode.enabled}}"
           label="$i18n{hardwareAccelerationLabel}">
         <template is="dom-if" if="[[shouldShowRestart_(
             prefs.hardware_acceleration_mode.enabled.value)]]">
           <paper-button on-tap="onRestartTap_" class="more-actions">
             $i18n{restart}
           </paper-button>
         </template>
       </settings-toggle-button>
     </div>
+    <div class="settings-box" hidden="[[hideProtection_]]">
+      <settings-toggle-button class="start" id="protectionControl"
+          pref="[[protectionPref_]]"
+          label="Disable local encryption TODO(i18n)"
+          on-settings-boolean-control-change="onProtectionChange_"
+          no-set-pref>
+      </settings-toggle-button>
+    </div>
     <div id="proxy" class="settings-box" on-tap="onProxyTap_"
         actionable$="[[!isProxyEnforcedByPolicy_]]">
       <div class="start">$i18n{proxySettingsLabel}</div>
       <button is="paper-icon-button-light" class="icon-external"
           aria-label="$i18n{proxySettingsLabel}"
           hidden$="[[isProxyEnforcedByPolicy_]]"></button>
       <template is="dom-if" if="[[isProxyEnforcedByPolicy_]]">
         <cr-policy-pref-indicator pref="[[prefs.proxy]]"
             icon-aria-label="$i18n{proxySettingsLabel}">
         </cr-policy-pref-indicator>
       </template>
     </div>
     <template is="dom-if" if="[[prefs.proxy.extensionId]]">
       <div class="settings-box continuation">
         <extension-controlled-indicator class="start"
             extension-id="[[prefs.proxy.extensionId]]"
             extension-name="[[prefs.proxy.controlledByName]]"
             extension-can-be-disabled="[[prefs.proxy.extensionCanBeDisabled]]"
             on-extension-disable="onExtensionDisable_">
         </extension-controlled-indicator>
       </div>
     </template>
   </template>
   <script src="system_page.js"></script>
 </dom-module>