Have different text for apps and regular extensions in some more places.

chrome/app/google_chrome_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <!-- This file contains definitions of strings that are specific to
 Google Chrome. These strings will be translated for each locale that Google
 Chrome supports. -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="grit/google_chrome_strings.h" type="rc_header">
       <emit emit_type='prepend'></emit>
@@ skipping 597 matching lines @@
       <message name="IDS_EXTENSION_INLINE_INSTALL_PROMPT_TITLE" desc="Titlebar of the extension or app inline installation prompt window">
         Add to Chrome
       </message>
 
       <!-- Extension alerts. -->
       <message name="IDS_EXTENSION_ALERT_ITEM_EXTERNAL" desc="A statement that an external extension has been newly installed. End users have no idea what an 'external' extension is, so we simply call them extensions. The trailing character must be a newline.">
 The extension "<ph name="EXTENSION_NAME">$1<ex>Gmail Checker</ex></ph>" has been added.
 
 '''
       </message>
+      <message name="IDS_APP_ALERT_ITEM_EXTERNAL" desc="A statement that an external packaged app has been newly installed. End users have no idea what an 'external' app is, so we simply call them apps. The trailing character must be a newline.">
+The app "<ph name="EXTENSION_NAME">$1<ex>Gmail Checker</ex></ph>" has been added.

[sky, 2012/09/11 17:37:23]

This doesn't mention chrome, any reason to have it in google_chrome_strings.grd?

[Marijn Kruisselbrink, 2012/09/11 18:03:38]

The reason I put it here is because IDS_EXTENSION_ALERT_ITEM_EXTERNAL is here
too. That one used to refer to chrome until r124874 removed it. Maybe that means
both of these shouldn't be in here

[sky, 2012/09/11 18:16:46]

I believe that's right; remove both.

[Marijn Kruisselbrink, 2012/09/13 17:31:24]

Done.

+
+'''
+      </message>
 
       <!-- Extension installed bubble -->
       <message name="IDS_EXTENSION_INSTALLED_HEADING" desc="First line in the content area of the extension installed bubble. Instructs that the extension was installed.">
         <ph name="EXTENSION_NAME">$1<ex>Gmail Checker</ex></ph> has been added to Chrome.
       </message>
 
       <!-- chrome://settings/extensions page -->
       <message name="IDS_EXTENSIONS_INCOGNITO_WARNING" desc="Warns the user that Chrome cannot prevent extensions from recording history in incognito mode. Displayed in extensions management UI after an extension is selected to be run in incognito mode.">
         <ph name="BEGIN_BOLD">&lt;b&gt;</ph>Warning:<ph name="END_BOLD">&lt;/b&gt;</ph> Google Chrome cannot prevent extensions from recording your browsing history. To disable this extension in incognito mode, unselect this option.
       </message>
@@ skipping 170 matching lines @@
 
       <!-- Chrome OS keyboard overlay-->
       <if expr="pp_ifdef('chromeos')">
         <message name="IDS_KEYBOARD_OVERLAY_SHOW_WRENCH_MENU" desc="The text in the keyboard overlay to explain the shortcut that opens the main Chrome menu.">
           Show the Chrome menu
         </message>
      </if>
     </messages>
   </release>
 </grit>