Populates sourceDevice attribute into TouchEvent

Source/core/input/InputDevice.cpp

Index: Source/core/input/InputDevice.cpp
diff --git a/Source/core/input/InputDevice.cpp b/Source/core/input/InputDevice.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..4611b97757c7358abba33e888bae3d784efa9a22
--- /dev/null
+++ b/Source/core/input/InputDevice.cpp
@@ -0,0 +1,43 @@
+// Copyright 2015 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 "config.h"
+#include "core/input/InputDevice.h"
+
+namespace blink {
+
+InputDevice::InputDevice()
+{
+}
+
+InputDevice::InputDevice(bool firesTouchEvents)
+{
+    m_firesTouchEvents = firesTouchEvents;
+}
+
+InputDevice::InputDevice(const InputDeviceInit& initializer)
+{
+    m_firesTouchEvents = initializer.firesTouchEvents();
+}
+
+InputDevice::~InputDevice()
+{
+}
+
+PassRefPtrWillBeRawPtr<InputDevice> InputDevice::touchEventInstance()
+{
+    DEFINE_STATIC_REF(InputDevice, instance, (InputDevice::create(true)));
+    return instance;
+}
+
+PassRefPtrWillBeRawPtr<InputDevice> InputDevice::nonTouchEventInstance()
+{
+    DEFINE_STATIC_REF(InputDevice, instance, (InputDevice::create(false)));
+    return instance;
+}
+
+DEFINE_TRACE(InputDevice)
+{
+}
+
+} // namespace blink