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

ui/events/devices/input_device.cc

Index: ui/events/devices/input_device.cc
diff --git a/ui/events/devices/input_device.cc b/ui/events/devices/input_device.cc
new file mode 100644
index 0000000000000000000000000000000000000000..11058e78dca55adb812dc4294cd0434d89827384
--- /dev/null
+++ b/ui/events/devices/input_device.cc
@@ -0,0 +1,33 @@
+// 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/input_device.h"
+
+#include <string>
+
+namespace ui {
+
+// static
+const int InputDevice::kInvalidId = 0;
+
+InputDevice::InputDevice()
+    : id(kInvalidId), type(InputDeviceType::INPUT_DEVICE_UNKNOWN) {
+}
+
+InputDevice::InputDevice(int id, InputDeviceType type, const std::string& name)
+    : id(id), type(type), name(name), vendor_id(0), product_id(0) {
+}
+
+InputDevice::InputDevice(int id,
+                         InputDeviceType type,
+                         const std::string& name,
+                         uint16_t vendor,
+                         uint16_t product)
+    : id(id), type(type), name(name), vendor_id(vendor), product_id(product) {
+}
+
+InputDevice::~InputDevice() {
+}
+
+}  // namespace ui