Support default values for arrays of POD data types in mojom.

mojo/public/bindings/sample/sample_service_unittests.js

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 define([
     "console",
     "mojo/apps/js/test/hexdump",
     "gin/test/expect",
     "mojom/sample_service"
   ], function(console, hexdump, expect, sample) {
@@ skipping 75 matching lines @@
   }
 
   // Check that values are set to the defaults if we don't override them.
   function checkDefaultValues() {
     var bar = new sample.Bar();
     expect(bar.alpha).toBe(255);
 
     var foo = new sample.Foo();
     expect(foo.name).toBe("Fooby");
     expect(foo.a).toBeTruthy();
+
+    expect(foo.data.length).toBe(3);
+    expect(foo.data[0]).toBe(1);
+    expect(foo.data[1]).toBe(2);
+    expect(foo.data[2]).toBe(3);
   }
 
   function ServiceImpl() {
   }
 
   ServiceImpl.prototype = Object.create(sample.ServiceStub.prototype);
 
   ServiceImpl.prototype.frobinate = function(foo, baz, port) {
     checkFoo(foo);
     expect(baz).toBe(sample.ServiceStub.BazOptions.BAZ_EXTRA);
@@ skipping 16 matching lines @@
   var serviceProxy = new sample.ServiceProxy(receiver);
 
   checkDefaultValues();
 
   var foo = makeFoo();
   checkFoo(foo);
 
   var port = 10;
   serviceProxy.frobinate(foo, sample.ServiceProxy.BazOptions.BAZ_EXTRA, port);
 });