This CL adds support for extension in GYP.

test/ios/gyptest-extension.py

Index: test/ios/gyptest-extension.py
diff --git a/test/ios/gyptest-extension.py b/test/ios/gyptest-extension.py
new file mode 100755
index 0000000000000000000000000000000000000000..568436fb7cf91c7c804b17d3aac6776890f70ed0
--- /dev/null
+++ b/test/ios/gyptest-extension.py
@@ -0,0 +1,28 @@
+#!/usr/bin/env python
+
+# Copyright (c) 2012 Google Inc. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""
+Verifies that ios app bundles are built correctly.
+"""
+
+import TestGyp
+import TestMac
+
+import sys
+if sys.platform == 'darwin' and TestMac.Xcode.Version()>="0600":
+  test = TestGyp.TestGyp(formats=['ninja'])
+
+  test.run_gyp('extension.gyp', chdir='extension')
+
+  test.build('extension.gyp', 'ExtensionContainer', chdir='extension')
+
+  # Test that the extension is .bundle
+  test.built_file_must_exist(
+      'ExtensionContainer.app/PlugIns/ActionExtension.appex',
+      chdir='extension')
+
+  test.pass_test()
+