Implement the Blink part of the Device Motion API.

Source/modules/device_orientation/DeviceMotionData.cpp

Index: Source/modules/device_orientation/DeviceMotionData.cpp
diff --git a/Source/modules/device_orientation/DeviceMotionData.cpp b/Source/modules/device_orientation/DeviceMotionData.cpp
index 29982a61442d839e3a39bdb72a401b1d5c61dcfb..f28db3e0396fa5abb61af7a167408a77f4a240e5 100644
--- a/Source/modules/device_orientation/DeviceMotionData.cpp
+++ b/Source/modules/device_orientation/DeviceMotionData.cpp
@@ -25,6 +25,7 @@
 
 #include "config.h"
 #include "modules/device_orientation/DeviceMotionData.h"
+#include <public/WebDeviceMotionData.h>
 
 namespace WebCore {
 
@@ -74,6 +75,24 @@ PassRefPtr<DeviceMotionData> DeviceMotionData::create(PassRefPtr<Acceleration> a
     return adoptRef(new DeviceMotionData(acceleration, accelerationIncludingGravity, rotationRate, canProvideInterval, interval));
 }
 
+PassRefPtr<DeviceMotionData> DeviceMotionData::create(const WebKit::WebDeviceMotionData& data)
+{
+    return DeviceMotionData::create(
+        DeviceMotionData::Acceleration::create(
+            data.hasAccelerationX, data.accelerationX,
+            data.hasAccelerationY, data.accelerationY,
+            data.hasAccelerationZ, data.accelerationZ),
+        DeviceMotionData::Acceleration::create(
+            data.hasAccelerationIncludingGravityX, data.accelerationIncludingGravityX,
+            data.hasAccelerationIncludingGravityY, data.accelerationIncludingGravityY,
+            data.hasAccelerationIncludingGravityZ, data.accelerationIncludingGravityZ),
+        DeviceMotionData::RotationRate::create(
+            data.hasRotationRateAlpha, data.rotationRateAlpha,
+            data.hasRotationRateBeta, data.rotationRateBeta,
+            data.hasRotationRateGamma, data.rotationRateGamma),
+        true, data.interval);
+}
+
 DeviceMotionData::DeviceMotionData()
     : m_canProvideInterval(false)
     , m_interval(0)