Add interface versioning. Methods queryVersion and requireVersion.

content/content_resources.grd

Index: content/content_resources.grd
diff --git a/content/content_resources.grd b/content/content_resources.grd
index 3a3ee37d55c1e44f376fb401f14c6f16b0563ebe..bd055e6ef44db84b98eabed85cfbe7044ce0515c 100644
--- a/content/content_resources.grd
+++ b/content/content_resources.grd
@@ -57,6 +57,9 @@
         <include name="IDR_MOJO_ROUTER_JS" file="../mojo/public/js/router.js" flattenhtml="true" type="BINDATA" />
         <include name="IDR_MOJO_UNICODE_JS" file="../mojo/public/js/unicode.js" flattenhtml="true" type="BINDATA" />
         <include name="IDR_MOJO_VALIDATOR_JS" file="../mojo/public/js/validator.js" flattenhtml="true" type="BINDATA" />
+        <include name="IDR_MOJO_CONTROL_MESSAGE_PROXY_JS" file="../mojo/public/js/lib/control_message_proxy.js" flattenhtml="true" type="BINDATA" />

[yzshen1, 2017/02/11 01:11:28]

Please order these js-bindings files by their names alphabetically. (here and
also other files, such as mojo_context_state.cc, dispatcher.cc, constants, etc.)

You don't have to reorder the entire file, just within the group of js-bindings
files.

[wangjimmy, 2017/02/13 20:43:06]

Done.

+        <include name="IDR_MOJO_CONTROL_MESSAGE_HANDLER_JS" file="../mojo/public/js/lib/control_message_handler.js" flattenhtml="true" type="BINDATA" />
+        <include name="IDR_MOJO_INTERFACE_CONTROL_MESSAGES_MOJO_JS" file="../mojo/public/interfaces/bindings/interface_control_messages.mojom.js" flattenhtml="true" type="BINDATA" />

[yzshen1, 2017/02/11 01:11:28]

Does it make sense to use "..._MOJOM_JS" instead of "..._MOJO_JS" to better
match the file name?

[wangjimmy, 2017/02/13 20:43:06]

Done.

       </if>
     </includes>
   </release>