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

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 be65b810ea2310a2187aa16e86ed6dcdde156959..2e92ed1b35e0533b7893f0726bafd7536900276b 100644
--- a/chrome/app/chromium_strings.grd
+++ b/chrome/app/chromium_strings.grd
@@ -977,6 +977,16 @@ Signing in anyway will merge Chromium information like bookmarks, history, and o
           <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>