345397 Support pathnames in nsLocalFileOSX::SetPersistentDescriptor. r=josh sr=darin a/1.8.1=beltzner

git-svn-id: svn://10.0.0.236/branches/MOZILLA_1_8_BRANCH@203534 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/xpcom/io/nsLocalFileOSX.cpp

@@ -1344,6 +1344,13 @@ NS_IMETHODIMP nsLocalFile::SetPersistentDescriptor(const nsACString& aPersistent
   if (aPersistentDescriptor.IsEmpty())
     return NS_ERROR_INVALID_ARG;
 
+  // Support pathnames as user-supplied descriptors if they begin with '/'
+  // or '~'.  These characters do not collide with the base64 set used for
+  // encoding alias records.
+  char first = aPersistentDescriptor.First();
+  if (first == '/' || first == '~')
+    return InitWithNativePath(aPersistentDescriptor);
+
   nsresult rv = NS_OK;
   
   PRUint32 dataSize = aPersistentDescriptor.Length();