Bug 753990 - Allow appcache to work with a custom cache (profile) folder within a single application, r=michal.novotny

uriloader/prefetch/OfflineCacheUpdateChild.cpp

@@ -177,8 +177,9 @@ OfflineCacheUpdateChild::AssociateDocument(nsIDOMDocument *aDocument,
 
 NS_IMETHODIMP
 OfflineCacheUpdateChild::Init(nsIURI *aManifestURI,
-                           nsIURI *aDocumentURI,
-                           nsIDOMDocument *aDocument)
+                              nsIURI *aDocumentURI,
+                              nsIDOMDocument *aDocument,
+                              nsILocalFile *aCustomProfileDir)
 {
     nsresult rv;
 
@@ -188,6 +189,11 @@ OfflineCacheUpdateChild::Init(nsIURI *aManifestURI,
     if (!service)
         return NS_ERROR_FAILURE;
 
+    if (aCustomProfileDir) {
+        NS_ERROR("Custom Offline Cache Update not supported on child process");
+        return NS_ERROR_NOT_IMPLEMENTED;
+    }
+
     LOG(("OfflineCacheUpdateChild::Init [%p]", this));
 
     // Only http and https applications are supported.