1 files changed, 7 insertions, 2 deletions
diff --git a/dom/base/DOMPoint.h b/dom/base/DOMPoint.h
index 79937f83a3..f460ea725c 100644
--- a/dom/base/DOMPoint.h
+++ b/dom/base/DOMPoint.h
@@ -6,6 +6,7 @@
 #ifndef MOZILLA_DOMPOINT_H_
 #define MOZILLA_DOMPOINT_H_
 
+#include "js/StructuredClone.h"
 #include "nsWrapperCache.h"
 #include "nsISupports.h"
 #include "nsCycleCollectionParticipant.h"
@@ -23,8 +24,8 @@ struct DOMPointInit;
 class DOMPointReadOnly : public nsWrapperCache
 {
 public:
-  DOMPointReadOnly(nsISupports* aParent, double aX, double aY,
-                   double aZ, double aW)
+  explicit DOMPointReadOnly(nsISupports* aParent, double aX = 0.0,
+                            double aY = 0.0, double aZ = 0.0, double aW = 1.0)
     : mParent(aParent)
     , mX(aX)
     , mY(aY)
@@ -50,6 +51,10 @@ public:
   nsISupports* GetParentObject() const { return mParent; }
   virtual JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
 
+  bool WriteStructuredClone(JSStructuredCloneWriter* aWriter) const;
+
+  bool ReadStructuredClone(JSStructuredCloneReader* aReader);
+
 protected:
   virtual ~DOMPointReadOnly() {}