ChromeOS: Implement Update screen of material design OOBE.

chrome/browser/resources/chromeos/login/oobe_screen_update.html

Index: chrome/browser/resources/chromeos/login/oobe_screen_update.html
diff --git a/chrome/browser/resources/chromeos/login/oobe_screen_update.html b/chrome/browser/resources/chromeos/login/oobe_screen_update.html
index 5c784949c6457d31f965e588d90578ce4c2d2c4e..98fc9211416b83ee036bdc5650767c8f28d7127d 100644
--- a/chrome/browser/resources/chromeos/login/oobe_screen_update.html
+++ b/chrome/browser/resources/chromeos/login/oobe_screen_update.html
@@ -1,29 +1,32 @@
 <div class="step right hidden animated" id="update" role="group"
      i18n-values="aria-label:updateScreenAccessibleTitle" hidden>
-  <div class="step-contents">
-    <div id="update-cancel-hint" hidden>
-      <p i18n-content="cancelUpdateHint"></p>
-    </div>
-    <div id="update-screen-curtain">
-      <div id="checking-updates-label" i18n-content="checkingForUpdatesMsg">
+  <oobe-update-md id="oobe-update-md" hidden></oobe-update-md>
+  <div id="oobe-update">
+    <div class="step-contents">
+      <div id="update-cancel-hint" hidden>
+        <p i18n-content="cancelUpdateHint"></p>
       </div>
-      <div id="update-checking-progress" aria-live="polite">
-        <div class="throbber"></div>
-        <div i18n-content="checkingForUpdates"></div>
+      <div id="update-screen-curtain">
+        <div id="checking-updates-label" i18n-content="checkingForUpdatesMsg">
+        </div>
+        <div id="update-checking-progress" aria-live="polite">
+          <div class="throbber"></div>
+          <div i18n-content="checkingForUpdates"></div>
+        </div>
+      </div>
+      <div id="update-screen-main" hidden>
+        <p id="update-upper-label"></p>
+        <p id="update-bottom-label" i18n-content="installingUpdateDesc"></p>
+        <progress id="update-progress-bar" max="100" value="0"></progress>
+        <p id="estimated-time-left" class="progress-message" hidden></p>
+        <p id="progress-message" class="progress-message" hidden></p>
       </div>
     </div>
-    <div id="update-screen-main" hidden>
-      <p id="update-upper-label"></p>
-      <p id="update-bottom-label" i18n-content="installingUpdateDesc"></p>
-      <progress id="update-progress-bar" max="100" value="0"></progress>
-      <p id="estimated-time-left" class="progress-message" hidden></p>
-      <p id="progress-message" class="progress-message" hidden></p>
-    </div>
-  </div>
-  <div id="update-extra-controls" class="step-extra-controls">
-    <div id="update-accessibility">
-      <a id="update-accessibility-link" href="#" role="button"
-         i18n-content="accessibilityLink"></a>
+    <div id="update-extra-controls" class="step-extra-controls">
+      <div id="update-accessibility">
+        <a id="update-accessibility-link" href="#" role="button"
+           i18n-content="accessibilityLink"></a>
+      </div>
     </div>
   </div>
 </div>