aura: Implement new app list mock.

chrome/app/generated_resources.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
 This file contains definitions of resources that will be translated for each
 locale.  The variables is_win, is_macosx, is_linux, and is_posix are available
 for making strings OS specific.  Other platform defines such as use_titlecase
 are declared in build/common.gypi.
 -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
@@ skipping 15077 matching lines @@
     </message>
 
     <!-- Tracing about page strings -->
     <message name="IDS_TRACING_TITLE" desc="Title for the about:tracing page.">
       Tracing
     </message>
 
     <!-- Aura strings -->
     <if expr="pp_ifdef('use_aura')">
       <message name="IDS_SEARCH_BOX_HINT" desc="Hint text for the search box in app list window.">
-        Search apps and more
+        Google search
       </message>
       <message name="IDS_APP_LIST_INCOGNITO" desc="Title text for an app list item that opens an incognito browser window.">
         Incognito
       </message>
       <message name="IDS_APP_LIST_SETTINGS" desc="Title text for an app list item that opens settings page.">
         Settings
       </message>
       <message name="IDS_LAUNCHER_CONTEXT_MENU_CLOSE" desc="Title text for the 'close' context menu item of the launcher">
         Close
       </message>
@@ skipping 14 matching lines @@
     </messages>
     <structures fallback_to_english="true">
       <!-- Make sure these stay in sync with the structures in generated_resources.grd. -->
       <structure name="IDD_CHROME_FRAME_FIND_DIALOG" file="cf_resources.rc" type="dialog" >
       </structure>
       <structure name="IDD_CHROME_FRAME_READY_PROMPT" file="cf_resources.rc" type="dialog" >
       </structure>
     </structures>
   </release>
 </grit>