Mojo JS bindings: change module loading solution.

mojo/public/interfaces/bindings/tests/echo.mojom

Index: mojo/public/interfaces/bindings/tests/echo.mojom
diff --git a/mojo/public/interfaces/bindings/tests/echo.mojom b/mojo/public/interfaces/bindings/tests/echo.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..56c6063010588c7c9b896ddb6754c61cf302fcc4
--- /dev/null
+++ b/mojo/public/interfaces/bindings/tests/echo.mojom
@@ -0,0 +1,12 @@
+// Copyright 2017 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.
+
+module test.echo.mojom;
+
+import "echo_import.mojom";
+
+interface Echo {
+  EchoPoint(test.echo_import.mojom.Point point)
+      => (test.echo_import.mojom.Point result);
+};