diff -r 000000000000 -r 6474c204b198 dom/events/DeviceMotionEvent.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/events/DeviceMotionEvent.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,148 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_dom_DeviceMotionEvent_h_
+#define mozilla_dom_DeviceMotionEvent_h_
+
+#include "mozilla/Attributes.h"
+#include "mozilla/dom/DeviceMotionEventBinding.h"
+#include "mozilla/dom/Event.h"
+
+namespace mozilla {
+namespace dom {
+
+class DeviceRotationRate MOZ_FINAL : public nsWrapperCache
+{
+public:
+  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(DeviceRotationRate)
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(DeviceRotationRate)
+
+  DeviceRotationRate(DeviceMotionEvent* aOwner,
+                     Nullable<double> aAlpha, Nullable<double> aBeta,
+                     Nullable<double> aGamma);
+
+  DeviceMotionEvent* GetParentObject() const
+  {
+    return mOwner;
+  }
+
+  virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE
+  {
+    return DeviceRotationRateBinding::Wrap(aCx, this);
+  }
+
+  Nullable<double> GetAlpha() const { return mAlpha; }
+  Nullable<double> GetBeta() const { return mBeta; }
+  Nullable<double> GetGamma() const { return mGamma; }
+
+private:
+  ~DeviceRotationRate();
+
+protected:
+  nsRefPtr<DeviceMotionEvent> mOwner;
+  Nullable<double> mAlpha, mBeta, mGamma;
+};
+
+class DeviceAcceleration MOZ_FINAL : public nsWrapperCache
+{
+public:
+  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(DeviceAcceleration)
+  NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(DeviceAcceleration)
+
+  DeviceAcceleration(DeviceMotionEvent* aOwner,
+                     Nullable<double> aX, Nullable<double> aY,
+                     Nullable<double> aZ);
+
+  DeviceMotionEvent* GetParentObject() const
+  {
+    return mOwner;
+  }
+
+  virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE
+  {
+    return DeviceAccelerationBinding::Wrap(aCx, this);
+  }
+
+  Nullable<double> GetX() const { return mX; }
+  Nullable<double> GetY() const { return mY; }
+  Nullable<double> GetZ() const { return mZ; }
+
+private:
+  ~DeviceAcceleration();
+
+protected:
+  nsRefPtr<DeviceMotionEvent> mOwner;
+  Nullable<double> mX, mY, mZ;
+};
+
+class DeviceMotionEvent MOZ_FINAL : public Event
+{
+public:
+
+  DeviceMotionEvent(EventTarget* aOwner,
+                    nsPresContext* aPresContext,
+                    WidgetEvent* aEvent)
+    : Event(aOwner, aPresContext, aEvent)
+  {
+  }
+
+  NS_DECL_ISUPPORTS_INHERITED
+
+  // Forward to Event
+  NS_FORWARD_TO_EVENT
+
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(DeviceMotionEvent, Event)
+
+  virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE
+  {
+    return DeviceMotionEventBinding::Wrap(aCx, this);
+  }
+
+  DeviceAcceleration* GetAcceleration() const
+  {
+    return mAcceleration;
+  }
+
+  DeviceAcceleration* GetAccelerationIncludingGravity() const
+  {
+    return mAccelerationIncludingGravity;
+  }
+
+  DeviceRotationRate* GetRotationRate() const
+  {
+    return mRotationRate;
+  }
+
+  Nullable<double> GetInterval() const
+  {
+    return mInterval;
+  }
+
+  void InitDeviceMotionEvent(
+         const nsAString& aType,
+         bool aCanBubble,
+         bool aCancelable,
+         const DeviceAccelerationInit& aAcceleration,
+         const DeviceAccelerationInit& aAccelerationIncludingGravity,
+         const DeviceRotationRateInit& aRotationRate,
+         Nullable<double> aInterval,
+         ErrorResult& aRv);
+
+  static already_AddRefed<DeviceMotionEvent>
+  Constructor(const GlobalObject& aGlobal,
+              const nsAString& aType,
+              const DeviceMotionEventInit& aEventInitDict,
+              ErrorResult& aRv);
+
+protected:
+  nsRefPtr<DeviceAcceleration> mAcceleration;
+  nsRefPtr<DeviceAcceleration> mAccelerationIncludingGravity;
+  nsRefPtr<DeviceRotationRate> mRotationRate;
+  Nullable<double> mInterval;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_DeviceMotionEvent_h_