Allow comments in extension config files.

tools/json_schema_compiler/cpp_type_generator_test.py

Index: tools/json_schema_compiler/cpp_type_generator_test.py
diff --git a/tools/json_schema_compiler/cpp_type_generator_test.py b/tools/json_schema_compiler/cpp_type_generator_test.py
index ac162620a90c82a2e59b003ba5830dccf10d8dbd..e58dbac59d71b016582cc1a1d954d322046f5ea1 100644
--- a/tools/json_schema_compiler/cpp_type_generator_test.py
+++ b/tools/json_schema_compiler/cpp_type_generator_test.py
@@ -3,22 +3,22 @@
 # found in the LICENSE file.
 
 from cpp_type_generator import CppTypeGenerator
-import json
+from json_schema import LoadJSON
 import model
 import unittest
 
 class CppTypeGeneratorTest(unittest.TestCase):
   def setUp(self):
     self.model = model.Model()
-    self.permissions_json = json.loads(open('test/permissions.json').read())
+    self.permissions_json = LoadJSON('test/permissions.json')
     self.model.AddNamespace(self.permissions_json[0],
         'path/to/permissions.json')
     self.permissions = self.model.namespaces.get('permissions')
-    self.windows_json = json.loads(open('test/windows.json').read())
+    self.windows_json = LoadJSON('test/windows.json')
     self.model.AddNamespace(self.windows_json[0],
         'path/to/window.json')
     self.windows = self.model.namespaces.get('windows')
-    self.tabs_json = json.loads(open('test/tabs.json').read())
+    self.tabs_json = LoadJSON('test/tabs.json')
     self.model.AddNamespace(self.tabs_json[0],
         'path/to/tabs.json')
     self.tabs = self.model.namespaces.get('tabs')