MD Settings: ignore 0% updates on help/about page

chrome/browser/resources/settings/about_page/about_page.js

Index: chrome/browser/resources/settings/about_page/about_page.js
diff --git a/chrome/browser/resources/settings/about_page/about_page.js b/chrome/browser/resources/settings/about_page/about_page.js
index dc61dbb1f5cc056455c123503d309d6fad3174e5..529455f4f98e352a1b5ed4aece4f245ab772f304 100644
--- a/chrome/browser/resources/settings/about_page/about_page.js
+++ b/chrome/browser/resources/settings/about_page/about_page.js
@@ -170,7 +170,15 @@ Polymer({
               progressPercent);

[Dan Beam, 2016/11/09 21:21:13]

i don't really care much about making a non-percent version of this because it's
cros-only

         }
 </if>
-        return this.i18n('aboutUpgradeUpdating', progressPercent);
+        if (this.currentUpdateStatusEvent_.progress > 0) {
+          // NOTE(dbeam): some platforms (i.e. Mac) always send 0% while
+          // updating (they don't support incremental upgrade progress). Though
+          // it's certainly quite possible to validly end up here with 0% on
+          // platforms that support incremental progress, nobody really likes
+          // seeing that they're 0% done with something.
+          return this.i18n('aboutUpgradeUpdatingPercent', progressPercent);
+        }
+        return this.i18n('aboutUpgradeUpdating');
       default:
         var message = this.currentUpdateStatusEvent_.message;
         return message ?