IME for Mus: Add ui.mojom.CompositionText and its struct traits.

services/ui/public/interfaces/ime/ime.typemap

Index: services/ui/public/interfaces/ime/ime.typemap
diff --git a/services/ui/public/interfaces/ime/ime.typemap b/services/ui/public/interfaces/ime/ime.typemap
new file mode 100644
index 0000000000000000000000000000000000000000..d485f24992690e642f41a122c007f153c4f26af9
--- /dev/null
+++ b/services/ui/public/interfaces/ime/ime.typemap
@@ -0,0 +1,24 @@
+# Copyright 2016 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/ime/ime.mojom"
+public_headers = [
+  "//ui/base/ime/composition_text.h",
+  "//ui/base/ime/composition_underline.h",
+]
+traits_headers = [ "//services/ui/public/interfaces/ime/ime_struct_traits.h" ]
+sources = [
+  "//services/ui/public/interfaces/ime/ime_struct_traits.cc",
+]
+public_deps = [
+  "//ui/base/ime",
+]
+deps = [
+  "//ui/gfx/range",
+]
+
+type_mappings = [
+  "ui.mojom.CompositionText=ui::CompositionText",
+  "ui.mojom.CompositionUnderline=ui::CompositionUnderline",
+]