Add GN targets for mojom generator

mojo/public/BUILD.gn

Index: mojo/public/BUILD.gn
diff --git a/mojo/public/BUILD.gn b/mojo/public/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..93af4e5cffe1e24f429e312928027e64844afece
--- /dev/null
+++ b/mojo/public/BUILD.gn
@@ -0,0 +1,47 @@
+# Copyright 2014 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.
+
+source_set("bindings") {
+  sources = [
+    "cpp/bindings/allocation_scope.h",
+    "cpp/bindings/array.h",
+    "cpp/bindings/buffer.h",
+    "cpp/bindings/callback.h",
+    "cpp/bindings/error_handler.h",
+    "cpp/bindings/interface.h",
+    "cpp/bindings/message.h",
+    "cpp/bindings/passable.h",
+    "cpp/bindings/remote_ptr.h",
+    "cpp/bindings/sync_dispatcher.h",
+    "cpp/bindings/type_converter.h",
+    "cpp/bindings/lib/array.cc",
+    "cpp/bindings/lib/array_internal.h",
+    "cpp/bindings/lib/array_internal.cc",
+    "cpp/bindings/lib/bindings_internal.h",
+    "cpp/bindings/lib/bindings_serialization.cc",
+    "cpp/bindings/lib/bindings_serialization.h",
+    "cpp/bindings/lib/buffer.cc",
+    "cpp/bindings/lib/callback_internal.h",
+    "cpp/bindings/lib/connector.cc",
+    "cpp/bindings/lib/connector.h",
+    "cpp/bindings/lib/fixed_buffer.cc",
+    "cpp/bindings/lib/fixed_buffer.h",
+    "cpp/bindings/lib/interface.cc",
+    "cpp/bindings/lib/message.cc",
+    "cpp/bindings/lib/message_builder.cc",
+    "cpp/bindings/lib/message_builder.h",
+    "cpp/bindings/lib/message_internal.h",
+    "cpp/bindings/lib/message_queue.cc",
+    "cpp/bindings/lib/message_queue.h",
+    "cpp/bindings/lib/router.cc",
+    "cpp/bindings/lib/router.h",
+    "cpp/bindings/lib/scratch_buffer.cc",
+    "cpp/bindings/lib/scratch_buffer.h",
+    "cpp/bindings/lib/shared_data.h",
+    "cpp/bindings/lib/shared_ptr.h",
+    "cpp/bindings/lib/sync_dispatcher.cc",
+    "js/bindings/constants.cc",
+    "js/bindings/constants.h",
+  ]
+}