Mojo JS bindings: change module loading solution.

mojo/public/tools/bindings/generators/js_templates/module.amd.tmpl

 // Copyright 2014 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.
 
+{%- if use_new_js_bindings %}
+
+(function() {
+  // TODO(yzshen): Define these aliases to minimize the differences between the
+  // old/new modes. Remove them when the old mode goes away.
+  var bindings = mojoBindings;

[Ken Rockot(use gerrit already), 2017/03/20 15:27:20]

optional nit: can we use let instead of var for new JS? I guess we don't emit
"use strict" at file scope? Also maybe consistency is better and there are
probably far too many "var" uses in the bindings code to justify updating them
all now?

[yzshen1, 2017/03/20 17:45:02]

Added "use strict". 

IOS9 doesn't support "let" yet. So I don't think we can use that at the moment.
:/

+  var codec = mojoBindings.internal;
+  var validator = mojoBindings.internal;
+{%-   for import in imports %}
+  var {{import.unique_name}} = {{import.module.namespace}};
+{%-   endfor %}
+
+{% include "module_definition.tmpl" %}
+})();
+
+{%- else %}
+
 define("{{module.path}}", [
-{%- if module.path != "mojo/public/interfaces/bindings/interface_control_messages.mojom" %}
+{%-   if module.path != "mojo/public/interfaces/bindings/interface_control_messages.mojom" %}
     "mojo/public/js/bindings",
-{%- endif %}
+{%-   endif %}
     "mojo/public/js/codec",
     "mojo/public/js/core",
     "mojo/public/js/validator",
-{%- for import in imports %}
+{%-   for import in imports %}
     "{{import.module.path}}",
-{%- endfor %}
+{%-   endfor %}
 ], function(
 {%- if module.path != "mojo/public/interfaces/bindings/interface_control_messages.mojom" -%}
 bindings, {% endif -%}
 codec, core, validator
-{%- for import in imports -%}
+{%-   for import in imports -%}
     , {{import.unique_name}}
-{%- endfor -%}
+{%-   endfor -%}
 ) {
 
 {%- include "module_definition.tmpl" %}
 
   return exports;
 });
+
+{%- endif %}