Move the tts and ttsEngine APIs out of experimental, and give

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 3702 matching lines @@
       </message>
       <message name="IDS_EXTENSION_PROMPT_WARNING_TABS" desc="Permission string for access to tabs.">
         Your tabs and browsing activity
       </message>
       <message name="IDS_EXTENSION_PROMPT_WARNING_DEBUGGER" desc="Permission string for access to debugger.">
         Your data on all websites
       </message>
       <message name="IDS_EXTENSION_PROMPT_WARNING_CLIPBOARD" desc="Permission string for access to clipboard.">
         Data you copy and paste
       </message>
+      <message name="IDS_EXTENSION_PROMPT_WARNING_TTS_ENGINE" desc="Permission string for access to clipboard.">
+        Any text spoken using synthesized speech
+      </message>
 
       <!-- Extension/App error messages -->
       <message name="IDS_EXTENSION_CANT_GET_ABSOLUTE_PATH" desc="Warning displayed in pack dialog when the absolute path to the extension directory can not be found.">
         Can't find the absolute path to the directory to pack.
       </message>
       <message name="IDS_EXTENSION_DIRECTORY_NO_EXISTS" desc="Warning displayed in pack dialog when the extension directory does not exist.">
         Input directory must exist.
       </message>
       <message name="IDS_EXTENSION_DISALLOW_NON_DOWNLOADED_GALLERY_INSTALLS" desc="Error displayed when an app or extension that has an update URL used by the gallery is installed when not directly downloaded from the gallery.">
         This can only be installed from the <ph name="CHROME_WEB_STORE">$1<ex>Web Store</ex></ph>.
@@ skipping 9265 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>