chromeos: adds TouchDeviceServer and wires up in mushrome

ui/display/manager/chromeos/mojo/touch_device_transform_struct_traits.h

+// Copyright 2017 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 UI_DISPLAY_MANAGER_CHROMEOS_MOJO_TOUCH_DEVICE_TRANSFORM_STRUCT_TRAITS_H_
+#define UI_DISPLAY_MANAGER_CHROMEOS_MOJO_TOUCH_DEVICE_TRANSFORM_STRUCT_TRAITS_H_
+
+#include <stdint.h>
+
+#include "ui/display/manager/chromeos/mojo/touch_device_transform.mojom.h"
+#include "ui/display/manager/chromeos/touch_device_transform.h"
+#include "ui/gfx/mojo/transform_struct_traits.h"
+
+namespace mojo {
+
+template <>
+struct StructTraits<display::mojom::TouchDeviceTransformDataView,
+                    display::TouchDeviceTransform> {
+ public:
+  static int64_t display_id(const display::TouchDeviceTransform& r) {
+    return r.display_id;
+  }
+  static int32_t device_id(const display::TouchDeviceTransform& r) {
+    return r.device_id;
+  }
+  static const gfx::Transform& transform(
+      const display::TouchDeviceTransform& r) {
+    return r.transform;
+  }
+
+  static bool Read(display::mojom::TouchDeviceTransformDataView data,
+                   display::TouchDeviceTransform* out) {
+    out->display_id = data.display_id();
+    out->device_id = data.device_id();
+    if (!data.ReadTransform(&(out->transform)))
+      return false;
+    return true;
+  }
+};
+
+}  // namespace mojo
+
+#endif  // UI_DISPLAY_MANAGER_CHROMEOS_MOJO_TOUCH_DEVICE_TRANSFORM_STRUCT_TRAITS_H_