[Extensions] Expose enums on extension APIs.

extensions/renderer/resources/binding.js

Index: extensions/renderer/resources/binding.js
diff --git a/extensions/renderer/resources/binding.js b/extensions/renderer/resources/binding.js
index b1a3efcaca5002bb03d2918acec145572dd74e81..9a4517629da6f9c8d34fe3914d165fd70e78ae0b 100644
--- a/extensions/renderer/resources/binding.js
+++ b/extensions/renderer/resources/binding.js
@@ -275,13 +275,30 @@ Binding.prototype = {
       mod = mod[name];
     }
 
-    // Add types to global schemaValidator, the types we depend on from other
-    // namespaces will be added as needed.
     if (schema.types) {
       $Array.forEach(schema.types, function(t) {
         if (!isSchemaNodeSupported(t, platform, manifestVersion))
           return;
+
+        // Add types to global schemaValidator; the types we depend on from
+        // other namespaces will be added as needed.
         schemaUtils.schemaValidator.addTypes(t);
+
+        // Generate symbols for enums.
+        var enumValues = t['enum'];
+        if (enumValues) {
+          // Type IDs are qualified with the namespace during compilation,
+          // unfortunately, so remove it here.
+          logging.DCHECK(
+              t.id.substr(0, schema.namespace.length) == schema.namespace);
+          // Note: + 1 because it ends in a '.', e.g., 'fooApi.Type'.
+          var id = t.id.substr(schema.namespace.length + 1);
+          mod[id] = {};
+          $Array.forEach(enumValues, function(enumValue) {
+            enumValue = enumValue.name ? enumValue.name : enumValue;

[not at google - send to devlin, 2015/03/02 22:20:16]

// Note: enums can be declared either as a list of strings ['foo', 'bar'] or as
a list of objects [{'name': 'foo'}, {'name': 'bar'}].

[Devlin, 2015/03/02 23:32:35]

Done.

+            mod[id][enumValue] = enumValue;
+          });
+        }
       }, this);
     }