This patch implements Chromium's Aura gesture recognizer in terms of utouch-grail and utouch-frame …

ui/base/touch/multi_touch_device.cc

+// Copyright (c) 2012 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 "ui/base/touch/multi_touch_device.h"
+
+namespace ui {
+
+MultiTouchDevice::MultiTouchDevice()
+    : id_(-1),
+      name_("Invalid touch device"),
+      type_(UNKNOWN_TOUCH_DEVICE_TYPE),
+      max_num_touches_(0),
+      window_resolution_x_(0.f),
+      window_resolution_y_(0.f) {
+}
+
+MultiTouchDevice::~MultiTouchDevice() {
+}
+
+}  // namespace ui
+