Add INTERNAL annotation to namespaces in IDL

tools/json_schema_compiler/idl_schema_test.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 import idl_schema
 import unittest
 
 def getFunction(schema, name):
   for item in schema['functions']:
@@ skipping 66 matching lines @@
     expected = [{'items': {'$ref': 'idl_basics.EnumType'}, 'name': 'types',
                  'type': 'array'}]
     self.assertEquals(expected, getParams(schema, 'function14'))
 
   def testNoCompile(self):
     schema = self.idl_basics
     func = getFunction(schema, 'function15')
     self.assertTrue(func is not None)
     self.assertTrue(func['nocompile'])
 
+  def testInternalNamespace(self):
+    idl_basics  = self.idl_basics
+    self.assertEquals('idl_basics', idl_basics['namespace'])
+    self.assertTrue(idl_basics['internal'])
+    self.assertFalse(idl_basics['nodoc'])
+
   def testFunctionComment(self):
     schema = self.idl_basics
     func = getFunction(schema, 'function3')
     self.assertEquals(('This comment should appear in the documentation, '
                        'despite occupying multiple lines.'),
                       func['description'])
     self.assertEquals(
         [{'description': ('So should this comment about the argument. '
                           '<em>HTML</em> is fine too.'),
           'name': 'arg',
           '$ref': 'idl_basics.MyType1'}],
         func['parameters'])
     func = getFunction(schema, 'function4')
     self.assertEquals(('This tests if \\\"double-quotes\\\" are escaped '
                        'correctly.'),
                       func['description'])
 
 if __name__ == '__main__':
   unittest.main()