Change Chrome OS version numbers to Platform versions.

chrome/browser/resources/about_version.html

Index: chrome/browser/resources/about_version.html
diff --git a/chrome/browser/resources/about_version.html b/chrome/browser/resources/about_version.html
index 0d091a2fcd13cfaa47c64b85947f1c2fabcf4b88..f071919fd6a120d82420a597394a705b761c6039 100644
--- a/chrome/browser/resources/about_version.html
+++ b/chrome/browser/resources/about_version.html
@@ -74,8 +74,14 @@ about:version template page
         <tr><td class="label" valign="top" id="name" i18n-content="name"></td>
           <td class="version" id="version"><span i18n-content="version"></span> (<span i18n-content="official"></span> <span i18n-content="cl"></span>) <span i18n-content="version_modifier"></span></td>
         </tr>
+<if expr="not pp_ifdef('chromeos')">
         <tr><td class="label" valign="top" i18n-content="os_name"></td>
           <td class="version" id="os_type"><span i18n-content="os_type"></span> <span i18n-content="os_version"></span></td>
+</if>
+<if expr="pp_ifdef('chromeos')">
+        <tr><td class="label" valign="top">Platform</td>
+          <td class="version" id="os_version"><span i18n-content="os_version"></span></td>
+</if>
         </tr>
         <tr><td class="label" valign="top">WebKit</td>
           <td class="version" id="webkit_version" i18n-content="webkit_version"></td>