Updated remoting.xhr API to use promises. Removed access to the native

remoting/webapp/js_proto/qunit_proto.js

Index: remoting/webapp/js_proto/qunit_proto.js
diff --git a/remoting/webapp/js_proto/qunit_proto.js b/remoting/webapp/js_proto/qunit_proto.js
index 8eb96452f3a29176ff3393156f14a0fbad227fb6..a3746d455bc6ec8eb6d6ba9531986994eee833c7 100644
--- a/remoting/webapp/js_proto/qunit_proto.js
+++ b/remoting/webapp/js_proto/qunit_proto.js
@@ -72,7 +72,7 @@ QUnit.start = function() {};
 
 /**
  * @param {string} desc
- * @param {Function} f
+ * @param {function(!QUnit.Assert)} f
  */
 QUnit.test = function(desc, f) {};
 
@@ -87,8 +87,20 @@ QUnit.Assert = function() {};
 /**
  * @return {function():void}
  */
-QUnit.Assert.prototype.async = function() {};
+QUnit.Assert.prototype.async  = function() {};
+
+// TODO(jrw): Make these the primary definitions.
+QUnit.Assert.prototype.deepEqual = QUnit.deepEqual;
+QUnit.Assert.prototype.equal = QUnit.equal;
+QUnit.Assert.prototype.notEqual = QUnit.notEqual;
+QUnit.Assert.prototype.ok = QUnit.ok;
+
+/**
+ * @const {!QUnit.Assert}
+ */
+QUnit.assert;
 
+// TODO(jrw): Mark these as deprecated.
 var deepEqual = QUnit.deepEqual;
 var equal = QUnit.equal;
 var expect = QUnit.expect;