WebKit & WebCore part of the device motion implementation using the platform layer.

Source/WebCore/page/DOMWindow.h

Index: Source/WebCore/page/DOMWindow.h
diff --git a/Source/WebCore/page/DOMWindow.h b/Source/WebCore/page/DOMWindow.h
index b316fe67ed7a7a535034ea0605967caed35a7ea1..49cb6e617bf53bbeb279b9890ae5067beb5723c2 100644
--- a/Source/WebCore/page/DOMWindow.h
+++ b/Source/WebCore/page/DOMWindow.h
@@ -410,11 +410,11 @@ namespace WebCore {
         void willDetachDocumentFromFrame();
         void willDestroyCachedFrame();
 
-        Page* page();
-
     private:
         explicit DOMWindow(Document*);
 
+        Page* page();
+
         virtual void frameDestroyed() OVERRIDE;
         virtual void willDetachPage() OVERRIDE;