[i18n] login UI i18n-content and values to $i18n{}

ui/login/account_picker/user_pod_template.html

 <dom-module id="user-pod-template-shared-styles">
   <template>
     <link rel="stylesheet" href="user_pod_template.css">
   </template>
 </dom-module>
 
 <style is="custom-style" include="user-pod-template-shared-styles"></style>
 
 <iron-iconset-svg name="user-pod" size="24">
   <svg>
     <defs>
       <!--
       Inlined from Polymer's iron-icons to avoid importing everything.
       See http://goo.gl/Y1OdAq for instructions on adding additional icons.
       -->
       <g id="arrow-forward"><path d="M12 4l-1.41 1.41L16.17 11H4v2h12.17l-5.58 5.59L12 20l8-8z"/></g>
       <g id="close"><path d="M19 6.41L17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12z"/></g>
     </defs>
   </svg>
 </iron-iconset-svg>
 
 <div id="user-pod-template" class="pod disabled" hidden>
   <div class="user-image-pane">
     <div class="user-image-container">
       <img class="user-image" alt>
     </div>
-    <div class="signed-in-indicator" i18n-content="signedIn"></div>
+    <div class="signed-in-indicator">$i18n{signedIn}</div>
     <div class="indicator-container">
       <div class="indicator legacy-supervised-indicator"></div>
       <div class="indicator child-indicator"></div>
       <div class="indicator locked-indicator"></div>
     </div>
   </div>
 <if expr="chromeos">
   <div class="pin-container pin-disabled pin-tag">
     <pin-keyboard enable-password hide-input></pin-keyboard>
   </div>
 </if>
   <div class="main-pane">
     <div class="name-container">
       <div class="learn-more-container">
         <div class="learn-more"></div>
       </div>
       <div class="name"></div>
     </div>
     <div class="auth-container">
       <!-- Password Authentication -->
       <div class="custom-icon-container" hidden></div>
 <if expr="chromeos">
       <div class="fingerprint-icon-container" hidden
-           i18n-values="aria-label:fingerprintIconMessage">
+          aria-label="$i18n{fingerprintIconMessage}">
         <div class="custom-icon fingerprint-icon-image"></div>
       </div>
 </if>
       <div class="password-entry-container">
         <div class="password-container">
           <input type="password" class="password"
-                 i18n-values="placeholder:passwordHint">
+              placeholder="$i18n{passwordHint}">
         </div>
 <if expr="chromeos">
         <div class="capslock-hint-container">
           <img class="capslock-hint"
                src="chrome://theme/IDR_LOGIN_PASSWORD_CAPS_LOCK" alt>
         </div>
         <paper-icon-button class="submit-button" disabled
-                           aria-label="$i18n{submitButtonAccessibleName}"
-                           icon="user-pod:arrow-forward" tabindex="-1">
+            aria-label="$i18n{submitButtonAccessibleName}"
+            icon="user-pod:arrow-forward" tabindex="-1">
         </paper-icon-button>
 </if>
       </div>
       <!-- User Click Authentication -->
       <div class="password-label"></div>
       <div class="signin-transition-container">
-        <span class="signing-in-label" i18n-content="signingIn"></span>
+        <span class="signing-in-label">$i18n{signingIn}</span>
         <span class="animated-ellipsis-component0">.</span>
         <span class="animated-ellipsis-component1">.</span>
         <span class="animated-ellipsis-component2">.</span>
       </div>
       <div class="reauth-hint-container">
         <span class="reauth-warning"></span>
         <span class="reauth-name-hint"></span>
       </div>
       <div class="launch-app-button-container" hidden>
-        <button class="launch-app-button" i18n-content="launchAppButton">
-        </button>
+        <button class="launch-app-button">$i18n{launchAppButton}</button>
       </div>
     </div>
   </div>
   <div class="action-box-area">
     <div class="custom-appearance action-box-button"></div>
     <!-- iron-icon is imported inside user_manager.html -->
     <iron-icon icon="cr:more-vert" class="action-box-icon"></iron-icon>
   </div>
   <div class="user-image-gradient-area">
   </div>
   <div class="user-type-icon-area" hidden>
     <div class="custom-appearance user-type-icon-image"></div>
   </div>
   <div class="action-box-menu">
     <div class="action-box-menu-title">
       <span class="action-box-menu-title-name"></span>
       <span class="action-box-menu-title-email"></span>
     </div>
     <div class="action-box-menu-remove">
       <span class="action-box-menu-remove-command"/>
     </div>
     <div class="action-box-remove-user-warning" hidden>
       <div class="action-box-remove-user-warning-text"></div>
       <table class="action-box-remove-user-warning-table-nonsync
                     non-sync has-stats">
         <tbody>
           <tr>
-            <td i18n-content="removeUserWarningTextHistory"></td>
+            <td>$i18n{removeUserWarningTextHistory}</td>
             <td class="action-box-remove-user-warning-history
-                       action-box-remove-user-warning-table-numbers"
-                i18n-content="removeUserWarningTextCalculating"></td>
+                       action-box-remove-user-warning-table-numbers">
+              $i18n{removeUserWarningTextCalculating}
+            </td>
           </tr>
           <tr>
-            <td i18n-content="removeUserWarningTextPasswords"></td>
+            <td>$i18n{removeUserWarningTextPasswords}</td>
             <td class="action-box-remove-user-warning-passwords
-                       action-box-remove-user-warning-table-numbers"
-                i18n-content="removeUserWarningTextCalculating"></td>
+                       action-box-remove-user-warning-table-numbers">
+              $i18n{removeUserWarningTextCalculating}
+            </td>
           </tr>
           <tr>
-            <td i18n-content="removeUserWarningTextBookmarks"></td>
+            <td>$i18n{removeUserWarningTextBookmarks}</td>
             <td class="action-box-remove-user-warning-bookmarks
-                       action-box-remove-user-warning-table-numbers"
-                i18n-content="removeUserWarningTextCalculating"></td>
+                       action-box-remove-user-warning-table-numbers">
+              $i18n{removeUserWarningTextCalculating}
+            </td>
           </tr>
           <tr>
-            <td i18n-content="removeUserWarningTextSettings"></td>
+            <td>$i18n{removeUserWarningTextSettings}</td>
             <td class="action-box-remove-user-warning-settings
-                       action-box-remove-user-warning-table-numbers"
-                i18n-content="removeUserWarningTextCalculating"></td>
+                       action-box-remove-user-warning-table-numbers">
+              $i18n{removeUserWarningTextCalculating}
+            </td>
           </tr>
         </tbody>
       </table>
-      <div class="action-box-remove-legacy-supervised-user-warning-text"
-          i18n-content="removeLegacySupervisedUserWarningText"></div>
-      <div class="action-box-remove-non-owner-user-warning-text"
-          i18n-content="removeNonOwnerUserWarningText"></div>
+      <div class="action-box-remove-legacy-supervised-user-warning-text">
+        $i18n{removeLegacySupervisedUserWarningText}
+      </div>
+      <div class="action-box-remove-non-owner-user-warning-text">
+        $i18n{removeNonOwnerUserWarningText}
+      </div>
       <!-- paper-button is imported inside user_manager.html -->
-      <paper-button class="remove-warning-button"
-          i18n-content="removeUserWarningButtonTitle"></paper-button>
+      <paper-button class="remove-warning-button">
+        $i18n{removeUserWarningButtonTitle}
+      </paper-button>
     </div>
   </div>
   <div class="user-type-bubble">
     <div class="user-type-bubble-header">
-      <span class="mp-policy-title"
-          i18n-content="multiProfilesRestrictedPolicyTitle"></span>
+      <span class="mp-policy-title">
+        $i18n{multiProfilesRestrictedPolicyTitle}
+      </span>
     </div>
     <div class="user-type-bubble-body">
-      <span class="mp-policy-not-allowed-msg"
-          i18n-content="multiProfilesNotAllowedPolicyMsg" hidden></span>
-      <span class="mp-policy-primary-only-msg"
-          i18n-content="multiProfilesPrimaryOnlyPolicyMsg" hidden></span>
-      <span class="mp-owner-primary-only-msg"
-          i18n-content="multiProfilesOwnerPrimaryOnlyMsg" hidden></span>
+      <span class="mp-policy-not-allowed-msg" hidden>
+        $i18n{multiProfilesNotAllowedPolicyMsg}
+      </span>
+      <span class="mp-policy-primary-only-msg" hidden>
+        $i18n{multiProfilesPrimaryOnlyPolicyMsg}
+      </span>
+      <span class="mp-owner-primary-only-msg" hidden>
+        $i18n{multiProfilesOwnerPrimaryOnlyMsg}
+      </span>
     </div>
   </div>
 </div>
 
 <!-- Extra elements that are appended to above "user-pod-template" for public
      account user pod. Note that only the children of the template div are
      appended. -->
 <div id="public-account-user-pod-extras-template" hidden>
   <div class="expanded-pane">
     <div class="expanded-pane-contents">
       <div class="side-container">
         <div class="expanded-pane-name"></div>
         <div class="expanded-pane-container">
           <div class="expanded-pane-learn-more-container">
             <div class="expanded-pane-learn-more"></div>
           </div>
           <div class="info"></div>
           <div class="monitoring-container">
-            <span class="monitoring-warning"
-                  i18n-content="publicAccountMonitoringWarning"></span>
-            <a class="monitoring-learn-more" href="#" role="button"
-               i18n-content="publicAccountLearnMore"></a>
+            <span class="monitoring-warning">
+              $i18n{publicAccountMonitoringWarning}
+            </span>
+            <a class="monitoring-learn-more" href="#" role="button">
+              $i18n{publicAccountLearnMore}
+            </a>
           </div>
-          <div class="reminder" i18n-content="publicAccountReminder"></div>
+          <div class="reminder">$i18n{publicAccountReminder}</div>
           <div class="language-and-input-section">
             <div class="select-with-label">
-              <label class="language-select-label"
-                     i18n-content="publicSessionSelectLanguage">
+              <label class="language-select-label">
+                $i18n{publicSessionSelectLanguage}
               </label>
               <div class="select-container">
                 <select class="language-select"></select>
               </div>
             </div>
             <div class="select-with-label">
-              <label class="keyboard-select-label"
-                     i18n-content="publicSessionSelectKeyboard">
+              <label class="keyboard-select-label">
+                $i18n{publicSessionSelectKeyboard}
               </label>
               <div class="select-container">
                 <select class="keyboard-select"></select>
               </div>
             </div>
           </div>
         </div>
       </div>
       <div class="horizontal-line"></div>
       <div class="bottom-container">
         <paper-button raised class="enter-button"
-                i18n-content="publicAccountEnter"
-                i18n-values="aria-label:publicAccountEnterAccessibleName">
+            aria-label="$i18n{publicAccountEnterAccessibleName}">
+          $i18n{publicAccountEnter}
         </paper-button>
         <div class="language-and-input-container">
-          <a class="language-and-input" href="#" role="button"
-             i18n-content="publicSessionLanguageAndInput"></a>
+          <a class="language-and-input" href="#" role="button">
+            $i18n{publicSessionLanguageAndInput}
+          </a>
         </div>
       </div>
     </div>
   </div>
 </div>