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

services/ui/public/interfaces/BUILD.gn

Index: services/ui/public/interfaces/BUILD.gn
diff --git a/services/ui/public/interfaces/BUILD.gn b/services/ui/public/interfaces/BUILD.gn
index bf798fa2572b18f1f44dfca426bc5c00e1d9a13a..51c6e794ef0db45698ab799d6e88f40f3ac920f1 100644
--- a/services/ui/public/interfaces/BUILD.gn
+++ b/services/ui/public/interfaces/BUILD.gn
@@ -14,7 +14,6 @@ mojom("interfaces") {
     "display_manager.mojom",
     "event_matcher.mojom",
     "gpu_service.mojom",
-    "ime.mojom",
     "mus_constants.mojom",
     "user_access_manager.mojom",
     "user_activity_monitor.mojom",
@@ -37,6 +36,7 @@ mojom("interfaces") {
     "//cc/ipc:interfaces",
     "//gpu/ipc/common:interfaces",
     "//services/ui/public/interfaces/display",
+    "//services/ui/public/interfaces/ime",
     "//ui/events/mojo:interfaces",
     "//ui/gfx/geometry/mojo",
     "//ui/gfx/mojo",
@@ -55,6 +55,7 @@ test("ui_struct_traits_unittests") {
 
   sources = [
     "display/display_struct_traits_unittest.cc",
+    "ime/ime_struct_traits_unittest.cc",
   ]
 
   deps = [
@@ -62,6 +63,7 @@ test("ui_struct_traits_unittests") {
     "//base/test:test_support",
     "//mojo/edk/test:run_all_unittests",
     "//services/ui/public/interfaces/display:test_interfaces",
+    "//services/ui/public/interfaces/ime:test_interfaces",
     "//testing/gtest",
     "//ui/display/types",
     "//ui/gfx:test_support",