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

services/ui/public/interfaces/ime/BUILD.gn

Index: services/ui/public/interfaces/ime/BUILD.gn
diff --git a/services/ui/public/interfaces/ime/BUILD.gn b/services/ui/public/interfaces/ime/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..3a60f3fc2282e426c72d2d7b21e656aecce5fd54
--- /dev/null
+++ b/services/ui/public/interfaces/ime/BUILD.gn
@@ -0,0 +1,27 @@
+# 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.
+
+import("//mojo/public/tools/bindings/mojom.gni")
+
+mojom("ime") {
+  sources = [
+    "ime.mojom",
+  ]
+
+  public_deps = [
+    "//ui/events/mojo:interfaces",
+    "//ui/gfx/geometry/mojo",
+    "//ui/gfx/range/mojo",
+  ]
+}
+
+mojom("test_interfaces") {
+  sources = [
+    "ime_struct_traits_test.mojom",
+  ]
+
+  public_deps = [
+    ":ime",
+  ]
+}