Moving mediaplayer to the chrome filebrowser. Observable behaviour should not change.

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. OS values are passed through from Python's sys.platform:
 
   win32 - Windows
   darwin - Mac
   linux2 - Linux (both Views and GTK+)
 
@@ skipping 8556 matching lines @@
       </message>
       <message name="IDS_FILE_BROWSER_NOTHING_SELECTED" desc="Nothing selected.">
         No files selected
       </message>
       <message name="IDS_FILE_BROWSER_ONE_FILE_SELECTED" desc="One file selected.">
         One file selected, $1
       </message>
       <message name="IDS_FILE_BROWSER_MANY_FILES_SELECTED" desc="Many files selected.">
         $1 files selected, $2
       </message>
+      <message name="IDS_FILE_BROWSER_PLAYBACK_ERROR" desc="Error playing back.">
+        Error playing back
+      </message>
 
       <!-- Bookmark manager -->
       <message name="IDS_BOOKMARK_MANAGER_TITLE" desc="Title of the bookmark manager window.">
         Bookmark Manager
       </message>
       <message name="IDS_BOOKMARK_MANAGER_SEARCH_BUTTON" desc="Title of the button in the bookmark manager that triggers a search">
         Search bookmarks
       </message>
       <if expr="not pp_ifdef('use_titlecase')">
         <message name="IDS_BOOKMARK_MANAGER" desc="The label of the menu item that shows the bookmark manager">
@@ skipping 3916 matching lines @@
     </includes>
     <structures fallback_to_english="true">
       <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>