Adds a first-run balloon to the Windows notification center.

chrome/app/chromium_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <!-- This file contains definitions of strings that are distribution specific.
 These strings will not be translated and only english versions will
 be available for now. -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="grit/chromium_strings.h" type="rc_header">
       <emit emit_type='prepend'></emit>
@@ skipping 959 matching lines @@
           Software running on your computer is incompatible with Chromium.
         </message>
       </if>
 
       <!-- Chrome OS OOBE Terms of Service screen-->
       <if expr="pp_ifdef('chromeos')">
         <message name="IDS_TERMS_OF_SERVICE_SCREEN_SUBHEADING" desc="Subheading at the top of the Terms of Service screen.">
           <ph name="DOMAIN">$1<ex>example.com</ex></ph> requires that you read and accept the following Terms of Service before using this device. These terms do not expand, modify or limit the Chromium OS Terms.
         </message>
       </if>
+
+      <!-- Chrome Notifications center -->
+      <if expr="is_win">
+        <message name="IDS_MESSAGE_CENTER_BALLOON_TITLE" desc="Title of the first run notification ballon describing the notification center.">
+          Chromium Notification Center
+        </message>
+        <message name="IDS_MESSAGE_CENTER_BALLOON_TEXT" desc="Body text for the the first run notification ballon describing the notification center.">
+          You can see all your notifications from Chromium apps, extensions, and websites here.
+        </message>
+      </if>
     </messages>
   </release>
 </grit>