diff -r 925c144e1f1f -r b8a032363ba2 widget/xpwidgets/nsTransferable.cpp
--- a/widget/xpwidgets/nsTransferable.cpp	Fri Jan 16 18:13:44 2015 +0100
+++ b/widget/xpwidgets/nsTransferable.cpp	Thu Jan 22 13:21:57 2015 +0100
@@ -56,11 +56,11 @@
 
 //-------------------------------------------------------------------------
 void
-DataStruct::SetData ( nsISupports* aData, uint32_t aDataLen, bool aIsPrivBrowsing )
+DataStruct::SetData ( nsISupports* aData, uint32_t aDataLen, bool aIsPrivateData )
 {
   // Now, check to see if we consider the data to be "too large"
   // as well as ensuring that private browsing mode is disabled
-  if (aDataLen > kLargeDatasetSize && !aIsPrivBrowsing) {
+  if (aDataLen > kLargeDatasetSize && !aIsPrivateData) {
     // if so, cache it to disk instead of memory
     if ( NS_SUCCEEDED(WriteCache(aData, aDataLen)) )
       return;
@@ -402,7 +402,7 @@
   for (i = 0; i < mDataArray.Length(); ++i) {
     DataStruct& data = mDataArray.ElementAt(i);
     if ( data.GetFlavor().Equals(aFlavor) ) {
-      data.SetData ( aData, aDataLen, mPrivateData);
+      data.SetData ( aData, aDataLen, mPrivateData );
       return NS_OK;
     }
   }