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

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

Index: services/ui/public/interfaces/ime/ime_struct_traits.h
diff --git a/services/ui/public/interfaces/ime/ime_struct_traits.h b/services/ui/public/interfaces/ime/ime_struct_traits.h
new file mode 100644
index 0000000000000000000000000000000000000000..89079026a7f5a49e8f30beb17ad6c3343e7c0116
--- /dev/null
+++ b/services/ui/public/interfaces/ime/ime_struct_traits.h
@@ -0,0 +1,50 @@
+// 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.
+
+#ifndef SERVICES_UI_PUBLIC_INTERFACES_IME_IME_STRUCT_TRAITS_H_
+#define SERVICES_UI_PUBLIC_INTERFACES_IME_IME_STRUCT_TRAITS_H_
+
+#include "base/strings/utf_string_conversions.h"
+#include "services/ui/public/interfaces/ime/ime.mojom-shared.h"
+#include "ui/base/ime/composition_text.h"
+#include "ui/base/ime/composition_underline.h"
+
+namespace mojo {
+
+template <>
+struct StructTraits<ui::mojom::CompositionUnderlineDataView,
+                    ui::CompositionUnderline> {
+  static uint32_t start_offset(const ui::CompositionUnderline& c) {
+    return c.start_offset;
+  }
+  static uint32_t end_offset(const ui::CompositionUnderline& c) {
+    return c.end_offset;
+  }
+  static uint32_t color(const ui::CompositionUnderline& c) { return c.color; }
+  static uint32_t thick(const ui::CompositionUnderline& c) { return c.thick; }
+  static uint32_t background_color(const ui::CompositionUnderline& c) {
+    return c.background_color;
+  }
+  static bool Read(ui::mojom::CompositionUnderlineDataView data,
+                   ui::CompositionUnderline* out);
+};
+
+template <>
+struct StructTraits<ui::mojom::CompositionTextDataView, ui::CompositionText> {
+  static std::string text(const ui::CompositionText& c) {
+    return base::UTF16ToUTF8(c.text);
+  }
+  static ui::CompositionUnderlines underlines(const ui::CompositionText& c) {
+    return c.underlines;
+  }
+  static gfx::Range selection(const ui::CompositionText& c) {
+    return c.selection;
+  }
+  static bool Read(ui::mojom::CompositionTextDataView data,
+                   ui::CompositionText* out);
+};
+
+}  // namespace mojo
+
+#endif  // SERVICES_UI_PUBLIC_INTERFACES_IME_IME_STRUCT_TRAITS_H_