[WIP] Mojo native bindings interface.

extensions/renderer/resources/keep_alive.js

Index: extensions/renderer/resources/keep_alive.js
diff --git a/extensions/renderer/resources/keep_alive.js b/extensions/renderer/resources/keep_alive.js
index bbd4ff455136c830f313388051e8519594c31d71..2d948a4a989f53ba899879c48cb16ce4472df8aa 100644
--- a/extensions/renderer/resources/keep_alive.js
+++ b/extensions/renderer/resources/keep_alive.js
@@ -4,9 +4,8 @@
 
 define('keep_alive', [
     'content/public/renderer/frame_interfaces',
-    'extensions/common/mojo/keep_alive.mojom',
-    'mojo/public/js/core',
-], function(frameInterfaces, mojom, core) {
+    'extensions/common/mojo/keep_alive.mojom'
+], function(frameInterfaces, mojom) {
 
   /**
    * An object that keeps the background page alive until closed.
@@ -26,7 +25,7 @@ define('keep_alive', [
    * Removes this keep-alive.
    */
   KeepAlive.prototype.close = function() {
-    core.close(this.handle_);
+    this.handle_.close();
   };
 
   var exports = {};