Prase IDL files in common/extensions/api PRESUBMIT check.

chrome/common/extensions/api/test_presubmit/invalid_idl_9.idl

Index: chrome/common/extensions/api/test_presubmit/invalid_idl_9.idl
diff --git a/chrome/common/extensions/api/test_presubmit/invalid_idl_9.idl b/chrome/common/extensions/api/test_presubmit/invalid_idl_9.idl
new file mode 100644
index 0000000000000000000000000000000000000000..3f2905c6298f1f1c98af1cec57385db29e41193e
--- /dev/null
+++ b/chrome/common/extensions/api/test_presubmit/invalid_idl_9.idl
@@ -0,0 +1,12 @@
+// Copyright 2013 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.
+
+// Tests an invalid IDL file.
+
+namespace test {
+  // Interface missing name.
+  interface {
+    static void function1();
+  };
+};