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

services/ui/public/interfaces/ime/ime_struct_traits.cc

+// 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.
+
+#include "services/ui/public/interfaces/ime/ime_struct_traits.h"
+
+#include "ui/gfx/range/mojo/range_struct_traits.h"
+
+namespace mojo {
+
+// static
+bool StructTraits<ui::mojom::CompositionUnderlineDataView,
+                  ui::CompositionUnderline>::
+    Read(ui::mojom::CompositionUnderlineDataView data,
+         ui::CompositionUnderline* out) {
+  if (data.is_null())
+    return false;
+  out->start_offset = data.start_offset();
+  out->end_offset = data.end_offset();
+  out->color = data.color();
+  out->thick = data.thick();
+  out->background_color = data.background_color();
+  return true;
+}
+
+// static
+bool StructTraits<ui::mojom::CompositionTextDataView, ui::CompositionText>::
+    Read(ui::mojom::CompositionTextDataView data, ui::CompositionText* out) {
+  return !data.is_null() && data.ReadText(&out->text) &&
+         data.ReadUnderlines(&out->underlines) &&
+         data.ReadSelection(&out->selection);
+}
+
+}  // namespace mojo