2 files changed, 47 insertions, 13 deletions

diff --git a/widget/MouseEvents.h b/widget/MouseEvents.h
index 643132618..442ac41e8 100644
--- a/widget/MouseEvents.h
+++ b/widget/MouseEvents.h
@@ -43,22 +43,31 @@ namespace dom {
 class WidgetPointerHelper
 {
 public:
-  bool convertToPointer;
   uint32_t pointerId;
   uint32_t tiltX;
   uint32_t tiltY;
-  bool retargetedByPointerCapture;
+  uint32_t twist;
+  float tangentialPressure;
+  bool convertToPointer;
 
-  WidgetPointerHelper() : convertToPointer(true), pointerId(0), tiltX(0), tiltY(0),
-                          retargetedByPointerCapture(false) {}
+  WidgetPointerHelper()
+    : pointerId(0)
+    , tiltX(0)
+    , tiltY(0)
+    , twist(0)
+    , tangentialPressure(0)
+    , convertToPointer(true)
+  {
+  }
 
   void AssignPointerHelperData(const WidgetPointerHelper& aEvent)
   {
-    convertToPointer = aEvent.convertToPointer;
     pointerId = aEvent.pointerId;
     tiltX = aEvent.tiltX;
     tiltY = aEvent.tiltY;
-    retargetedByPointerCapture = aEvent.retargetedByPointerCapture;
+    twist = aEvent.twist;
+    tangentialPressure = aEvent.tangentialPressure;
+    convertToPointer = aEvent.convertToPointer;
   }
 };
 
diff --git a/widget/nsGUIEventIPC.h b/widget/nsGUIEventIPC.h
index 7a9d870d9..e45189bb1 100644
--- a/widget/nsGUIEventIPC.h
+++ b/widget/nsGUIEventIPC.h
@@ -219,6 +219,34 @@ struct ParamTraits<mozilla::WidgetWheelEvent>
 };
 
 template<>
+struct ParamTraits<mozilla::WidgetPointerHelper>
+{
+  typedef mozilla::WidgetPointerHelper paramType;
+
+  static void Write(Message* aMsg, const paramType& aParam)
+  {
+    WriteParam(aMsg, aParam.pointerId);
+    WriteParam(aMsg, aParam.tiltX);
+    WriteParam(aMsg, aParam.tiltY);
+    WriteParam(aMsg, aParam.twist);
+    WriteParam(aMsg, aParam.tangentialPressure);
+    // We don't serialize convertToPointer since it's temporarily variable and
+    // should be reset to default.
+  }
+
+  static bool Read(const Message* aMsg, PickleIterator* aIter, paramType* aResult)
+  {
+    bool rv;
+    rv = ReadParam(aMsg, aIter, &aResult->pointerId) &&
+         ReadParam(aMsg, aIter, &aResult->tiltX) &&
+         ReadParam(aMsg, aIter, &aResult->tiltY) &&
+         ReadParam(aMsg, aIter, &aResult->twist) &&
+         ReadParam(aMsg, aIter, &aResult->tangentialPressure);
+    return rv;
+  }
+};
+
+template<>
 struct ParamTraits<mozilla::WidgetMouseEvent>
 {
   typedef mozilla::WidgetMouseEvent paramType;
@@ -226,13 +254,13 @@ struct ParamTraits<mozilla::WidgetMouseEvent>
   static void Write(Message* aMsg, const paramType& aParam)
   {
     WriteParam(aMsg, static_cast<mozilla::WidgetMouseEventBase>(aParam));
+    WriteParam(aMsg, static_cast<mozilla::WidgetPointerHelper>(aParam));
     WriteParam(aMsg, aParam.mIgnoreRootScrollFrame);
     WriteParam(aMsg, static_cast<paramType::ReasonType>(aParam.mReason));
     WriteParam(aMsg, static_cast<paramType::ContextMenuTriggerType>(
                        aParam.mContextMenuTrigger));
     WriteParam(aMsg, static_cast<paramType::ExitFromType>(aParam.mExitFrom));
     WriteParam(aMsg, aParam.mClickCount);
-    WriteParam(aMsg, aParam.pointerId);
   }
 
   static bool Read(const Message* aMsg, PickleIterator* aIter, paramType* aResult)
@@ -243,12 +271,13 @@ struct ParamTraits<mozilla::WidgetMouseEvent>
     paramType::ExitFromType exitFrom = 0;
     rv = ReadParam(aMsg, aIter,
                    static_cast<mozilla::WidgetMouseEventBase*>(aResult)) &&
+         ReadParam(aMsg, aIter,
+                   static_cast<mozilla::WidgetPointerHelper*>(aResult)) &&
          ReadParam(aMsg, aIter, &aResult->mIgnoreRootScrollFrame) &&
          ReadParam(aMsg, aIter, &reason) &&
          ReadParam(aMsg, aIter, &contextMenuTrigger) &&
          ReadParam(aMsg, aIter, &exitFrom) &&
-         ReadParam(aMsg, aIter, &aResult->mClickCount) &&
-         ReadParam(aMsg, aIter, &aResult->pointerId);
+         ReadParam(aMsg, aIter, &aResult->mClickCount);
     aResult->mReason = static_cast<paramType::Reason>(reason);
     aResult->mContextMenuTrigger =
       static_cast<paramType::ContextMenuTrigger>(contextMenuTrigger);
@@ -290,8 +319,6 @@ struct ParamTraits<mozilla::WidgetPointerEvent>
     WriteParam(aMsg, static_cast<mozilla::WidgetMouseEvent>(aParam));
     WriteParam(aMsg, aParam.mWidth);
     WriteParam(aMsg, aParam.mHeight);
-    WriteParam(aMsg, aParam.tiltX);
-    WriteParam(aMsg, aParam.tiltY);
     WriteParam(aMsg, aParam.mIsPrimary);
   }
 
@@ -301,8 +328,6 @@ struct ParamTraits<mozilla::WidgetPointerEvent>
       ReadParam(aMsg, aIter, static_cast<mozilla::WidgetMouseEvent*>(aResult)) &&
       ReadParam(aMsg, aIter, &aResult->mWidth) &&
       ReadParam(aMsg, aIter, &aResult->mHeight) &&
-      ReadParam(aMsg, aIter, &aResult->tiltX) &&
-      ReadParam(aMsg, aIter, &aResult->tiltY) &&
       ReadParam(aMsg, aIter, &aResult->mIsPrimary);
     return rv;
   }