Help: Implement the initial version of the cross-platform help/about page.

chrome/browser/resources/uber/uber.html

Index: chrome/browser/resources/uber/uber.html
diff --git a/chrome/browser/resources/uber/uber.html b/chrome/browser/resources/uber/uber.html
index fb08ffcf777a5ae1187abb222b3c8cd8826552df..34c2a58a73d03fca2df5578b8c917ba3a9a9398a 100644
--- a/chrome/browser/resources/uber/uber.html
+++ b/chrome/browser/resources/uber/uber.html
@@ -25,12 +25,9 @@
 <div class="iframe-container" i18n-values="id:extensionsHost"
     data-favicon="chrome://theme/IDR_EXTENSIONS_FAVICON">
   <iframe data-url="chrome://extensions-frame/"></iframe></div>
-
-<if expr="pp_ifdef('chromeos')">
-<div class="iframe-container" i18n-values="id:aboutPageHost"
+<div class="iframe-container" i18n-values="id:helpHost"
     data-favicon="chrome://theme/IDR_PRODUCT_LOGO_16">
-  <iframe data-url="chrome://about-page-frame/"></iframe></div>
-</if>
+  <iframe data-url="chrome://help-frame/"></iframe></div>
 
 <script src="chrome://chrome/strings.js"></script>
 <script src="chrome://resources/js/i18n_template.js"></script>