Provide skeleton for ChromeVox next.

chrome/browser/browser_resources.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <grit latest_public_release="0" current_release="1">
   <outputs>
     <output filename="grit/browser_resources.h" type="rc_header">
       <emit emit_type='prepend'></emit>
     </output>
     <output filename="browser_resources.pak" type="data_package" />
   </outputs>
   <release seq="1">
     <structures>
@@ skipping 277 matching lines @@
       <include name="IDR_GAIA_AUTH_MANIFEST" file="resources\gaia_auth\manifest.json" type="BINDATA" />
       <include name="IDR_GAIA_AUTH_KEYBOARD_MANIFEST" file="resources\gaia_auth\manifest_keyboard.json" type="BINDATA" />
       <include name="IDR_GAIA_AUTH_SAML_MANIFEST" file="resources\gaia_auth\manifest_saml.json" type="BINDATA" />
       <if expr="chromeos">
         <include name="IDR_CHOOSE_MOBILE_NETWORK_HTML" file="resources\chromeos\choose_mobile_network.html" flattenhtml="true" allowexternalscript="true" type="BINDATA" />
         <include name="IDR_CHOOSE_MOBILE_NETWORK_JS" file="resources\chromeos\choose_mobile_network.js" type="BINDATA" />
         <include name="IDR_CROSH_BUILTIN_MANIFEST" file="resources\chromeos\crosh_builtin\manifest.json" type="BINDATA" />
         <include name="IDR_CRYPTOHOME_HTML" file="resources\chromeos\cryptohome.html" flattenhtml="true" type="BINDATA" />
         <include name="IDR_CRYPTOHOME_JS" file="resources\chromeos\cryptohome.js" type="BINDATA" />
         <!-- manifest file of ChromeVox accessibility extension -->
-        <include name="IDR_CHROMEVOX_MANIFEST" file="resources\chromeos\chromevox\manifest.json" type="BINDATA" />
-        <include name="IDR_CHROMEVOX_GUEST_MANIFEST" file="resources\chromeos\chromevox\manifest_guest.json" type="BINDATA" />
+        <if expr="'use_chromevox_next' in defs">
+          <include name="IDR_CHROMEVOX_MANIFEST" file="resources\chromeos\chromevox_next\manifest.json" type="BINDATA" />
+          <include name="IDR_CHROMEVOX_GUEST_MANIFEST" file="resources\chromeos\chromevox\manifest_guest.json" type="BINDATA" />

[dmazzoni, 2014/05/08 23:29:27]

Don't you want to use a chromevox next guest manifest?

[David Tseng, 2014/05/08 23:37:47]

What caused us to need to use a guest manifest? I'd like to avoid duplicating
another manifest if possible (and simply point to the original manifest).

+        </if>
+        <if expr="not 'use_chromevox_next' in defs">

[dmazzoni, 2014/05/08 23:29:27]

This essentially makes ChromeVox Next a compile-time flag, which will make
testing very difficult. Can we make it a runtime flag? Have separate manifest
definitions for both versions, and use a runtime switch to determine which one
to load.

[David Tseng, 2014/05/08 23:37:47]

I'm mixed on this. I did it this way for the initial cl because it requires no
changes in the current path pointing to the ChromeVox sources and it doesn't
require separate resource ids for ChromeVox and ChromeVox next manifest paths.

It won't be hard to make a new target for ChromeVox next tests right?

+          <include name="IDR_CHROMEVOX_MANIFEST" file="resources\chromeos\chromevox\manifest.json" type="BINDATA" />
+          <include name="IDR_CHROMEVOX_GUEST_MANIFEST" file="resources\chromeos\chromevox\manifest_guest.json" type="BINDATA" />
+        </if>
         <!-- manifest file of Connectivity Diagnostics app -->
         <include name="IDR_CONNECTIVITY_DIAGNOSTICS_MANIFEST" file="resources\chromeos\connectivity_diagnostics\manifest.json" type="BINDATA" />
         <include name="IDR_CONNECTIVITY_DIAGNOSTICS_LAUNCHER_MANIFEST" file="resources\chromeos\connectivity_diagnostics_launcher\manifest.json" type="BINDATA" />
         <!-- manifest file of built-in speech synthesis extension -->
         <include name="IDR_SPEECH_SYNTHESIS_MANIFEST" file="resources\chromeos\speech_synthesis\manifest.json" type="BINDATA" />
         <include name="IDR_SPEECH_SYNTHESIS_GUEST_MANIFEST" file="resources\chromeos\speech_synthesis\manifest_guest.json" type="BINDATA" />
         <include name="IDR_DRIVE_INTERNALS_CSS" file="resources\chromeos\drive_internals.css" type="BINDATA" />
         <include name="IDR_DRIVE_INTERNALS_HTML" file="resources\chromeos\drive_internals.html" flattenhtml="true" type="BINDATA" />
         <include name="IDR_DRIVE_INTERNALS_JS" file="resources\chromeos\drive_internals.js" type="BINDATA" />
         <include name="IDR_GUEST_SESSION_TAB_HTML" file="resources\chromeos\guest_session_tab.html" flattenhtml="true" type="BINDATA" />
@@ skipping 97 matching lines @@
       <include name="IDR_GCM_INTERNALS_JS" file="resources\gcm_internals.js" type="BINDATA" />
       <include name="IDR_EASY_UNLOCK_MANIFEST" file="resources\easy_unlock\manifest.json" type="BINDATA" />
       <if expr="chromeos">
         <include name="IDR_SET_TIME_HTML" file="resources\chromeos\set_time.html" type="BINDATA" />
         <include name="IDR_SET_TIME_CSS" file="resources\chromeos\set_time.css" type="BINDATA" />
         <include name="IDR_SET_TIME_JS" file="resources\chromeos\set_time.js" type="BINDATA" />
       </if>
     </includes>
   </release>
 </grit>