First part of work to move V8 binding integrity off of vtables.

Source/WebCore/dom/DeviceMotionEvent.cpp

Index: Source/WebCore/dom/DeviceMotionEvent.cpp
diff --git a/Source/WebCore/dom/DeviceMotionEvent.cpp b/Source/WebCore/dom/DeviceMotionEvent.cpp
index fdfaa3f78310a8afc4aa0df6c65365c8f9105cd0..0c53d7220ec8eb298f87230f912018f91863541e 100644
--- a/Source/WebCore/dom/DeviceMotionEvent.cpp
+++ b/Source/WebCore/dom/DeviceMotionEvent.cpp
@@ -38,12 +38,14 @@ DeviceMotionEvent::~DeviceMotionEvent()
 DeviceMotionEvent::DeviceMotionEvent()
     : m_deviceMotionData(DeviceMotionData::create())
 {
+    ScriptWrappable::init(this);
 }
 
 DeviceMotionEvent::DeviceMotionEvent(const AtomicString& eventType, DeviceMotionData* deviceMotionData)
     : Event(eventType, false, false) // Can't bubble, not cancelable
     , m_deviceMotionData(deviceMotionData)
 {
+    ScriptWrappable::init(this);
 }
 
 void DeviceMotionEvent::initDeviceMotionEvent(const AtomicString& type, bool bubbles, bool cancelable, DeviceMotionData* deviceMotionData)