Sync ui/events to chromium @ https://codereview.chromium.org/1210203002

ui/events/devices/touchscreen_device.cc

Index: ui/events/devices/touchscreen_device.cc
diff --git a/ui/events/devices/touchscreen_device.cc b/ui/events/devices/touchscreen_device.cc
new file mode 100644
index 0000000000000000000000000000000000000000..9d7276c7b5cf9b757e957ea1caa3dc25c8952b43
--- /dev/null
+++ b/ui/events/devices/touchscreen_device.cc
@@ -0,0 +1,30 @@
+// Copyright 2014 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/events/devices/touchscreen_device.h"
+
+#include <string>
+
+#include "ui/events/devices/input_device.h"
+
+namespace ui {
+
+TouchscreenDevice::TouchscreenDevice() : touch_points(0) {
+}
+
+TouchscreenDevice::TouchscreenDevice(int id,
+                                     InputDeviceType type,
+                                     const std::string& name,
+                                     const gfx::Size& size,
+                                     int touch_points)
+    : InputDevice(id, type, name), size(size), touch_points(touch_points) {
+}
+
+TouchscreenDevice::TouchscreenDevice(const InputDevice& input_device,
+                                     const gfx::Size& size,
+                                     int touch_points)
+    : InputDevice(input_device), size(size), touch_points(touch_points) {
+}
+
+}  // namespace ui