[aura-mus] Add ui::CursorData, with mojo serialization.

services/ui/public/interfaces/cursor/cursor.typemap

Index: services/ui/public/interfaces/cursor/cursor.typemap
diff --git a/services/ui/public/interfaces/cursor/cursor.typemap b/services/ui/public/interfaces/cursor/cursor.typemap
new file mode 100644
index 0000000000000000000000000000000000000000..e82b51d3a6066961d87ddaaec28b863f32e55b55
--- /dev/null
+++ b/services/ui/public/interfaces/cursor/cursor.typemap
@@ -0,0 +1,19 @@
+# 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.
+
+mojom = "//services/ui/public/interfaces/cursor/cursor.mojom"
+public_headers = [ "//ui/base/cursor/cursor_data.h" ]
+traits_headers =
+    [ "//services/ui/public/interfaces/cursor/cursor_struct_traits.h" ]
+sources = [
+  "//services/ui/public/interfaces/cursor/cursor_struct_traits.cc",
+]
+public_deps = [
+  "//ui/base",
+]
+deps = [
+  "//ui/gfx/geometry",
+]
+
+type_mappings = [ "ui.mojom.CursorData=ui::CursorData[copyable_pass_by_value]" ]