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

chrome/app/chromium_strings.grd

Index: chrome/app/chromium_strings.grd
diff --git a/chrome/app/chromium_strings.grd b/chrome/app/chromium_strings.grd
index 68e1b5a1cc3bf851a33400853bf46cf2059c5273..d3c5537af2b3b0c587b539e8d7aacdaff02297c3 100644
--- a/chrome/app/chromium_strings.grd
+++ b/chrome/app/chromium_strings.grd
@@ -215,25 +215,36 @@ be available for now. -->
       <message name="IDS_BROWSER_WINDOW_TITLE_FORMAT_NO_LOGO" desc="The format for titles displayed when the window has no distributor logo displayed">
         <ph name="PAGE_TITLE">$1<ex>Google</ex></ph>
       </message>
+      <message name="IDS_GET_HELP_USING_CHROME" desc="Text of the button which takes the user to the Chrome help page.">
+        Not used in Chromium. Placeholder to keep resources in sync.
+      </message>
       <message name="IDS_ABOUT_VERSION_COMPANY_NAME" desc="Company name on the about pages">
         The Chromium Authors
       </message>
       <message name="IDS_ABOUT_VERSION_COPYRIGHT" desc="Copyright information on the about pages">
         Copyright © 2006-2012 The Chromium Authors. All Rights Reserved.
       </message>
-      <message name="IDS_ABOUT_VERSION_LICENSE" desc="The label below the copyright message, containing the URLs.">
+      <message name="IDS_ABOUT_OLD_VERSION_LICENSE" desc="The label below the copyright message, containing the URLs.">
         Chromium is made possible by the <ph name="BEGIN_LINK_CHROMIUM">BEGIN_LINK_CHR</ph>Chromium<ph name="END_LINK_CHROMIUM">END_LINK_CHR</ph> open source project and other <ph name="BEGIN_LINK_OSS">BEGIN_LINK_OSS</ph>open source software<ph name="END_LINK_OSS">END_LINK_OSS</ph>.
       </message>
+      <if expr="not pp_ifdef('chromeos')">
+        <message name="IDS_ABOUT_VERSION_LICENSE" desc="The label below the copyright message, containing the URLs.">
+          Chromium is made possible by the <ph name="BEGIN_LINK_CHROMIUM">&lt;a target="_blank" href="$1"&gt;</ph>Chromium<ph name="END_LINK_CHROMIUM">&lt;/a&gt;</ph> open source project and other <ph name="BEGIN_LINK_OSS">&lt;a target="_blank" href="$2"&gt;</ph>open source software<ph name="END_LINK_OSS">&lt;/a&gt;</ph>.
+        </message>
+      </if>
       <if expr="pp_ifdef('chromeos')">
+        <message name="IDS_ABOUT_VERSION_LICENSE" desc="The label below the copyright message, containing the URLs.">
+          Chromium OS is made possible by additional <ph name="BEGIN_LINK_OSS">&lt;a target="_blank" href="$2"&gt;</ph>open source software<ph name="END_LINK_OSS">&lt;/a&gt;</ph>.
+        </message>
         <message name="IDS_ABOUT_CROS_VERSION_LICENSE" desc="Additional text displayed beneath the Chromium open source URLs for Chromium OS.">
           Chromium OS is made possible by additional <ph name="BEGIN_LINK_CROS_OSS">BEGIN_LINK_CROS_OSS</ph>open source software<ph name="END_LINK_CROS_OSS">END_LINK_CROS_OSS</ph>.
         </message>
       </if>
       <message name="IDS_ABOUT_TERMS_OF_SERVICE" desc="The terms of service label in the About box.">
-        Not used in Chromium. Placeholder to keep resource maps in synch.
+        Not used in Chromium. Placeholder to keep resource maps in sync.
       </message>
       <message name="IDS_TERMS_OF_SERVICE" desc="The Terms of Service link text in the About box. Used in IDS_ABOUT_TERMS_OF_SERVICE.">
-        Not used in Chromium. Placeholder to keep resource maps in synch.
+        Not used in Chromium. Placeholder to keep resource maps in sync.
       </message>
       <message name="IDS_ACCNAME_APP" desc="The accessible name for the app menu.">
         Chromium
@@ -562,6 +573,12 @@ Chromium is unable to recover your settings.
       <message name="IDS_UPGRADE_SUCCESSFUL_RELAUNCH" desc="Status label: Successfully updated">
         Relaunch Chromium to finish updating
       </message>
+      <message name="IDS_UPGRADE_UP_TO_DATE" desc="Status label: Already up to date">
+        Chromium is up to date.
+      </message>
+      <message name="IDS_UPGRADE_UPDATING" desc="Status label: Updating in the background">
+        Updating Chromium in the background...
+      </message>
       <if expr="pp_ifdef('chromeos')">
         <message name="IDS_UPGRADE_ALREADY_UP_TO_DATE" desc="Status label: Already up to date">
           Chromium is up to date