Added unit tests for the Dart Chrome.* API wrappers.

tools/json_schema_compiler/dart_test/basic_type.idl

Index: tools/json_schema_compiler/dart_test/basic_type.idl
diff --git a/tools/json_schema_compiler/dart_test/basic_type.idl b/tools/json_schema_compiler/dart_test/basic_type.idl
new file mode 100644
index 0000000000000000000000000000000000000000..52837f8181cd09e423f085fbce9ef22bee9fa1e0
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+// 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.
+
+namespace basic_type {
+  // Documentation for BasicType.
+  dictionary BasicType {
+    // Documentation for the String s.
+    DOMString s;
+
+    // Documentation for the int i.
+    int i;
+
+    // Documentation for the long l.
+    long l;
+
+    // Documentation for the double d.
+    double d;
+  };
+};