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-rw-r--r--dom/xhr/XMLHttpRequestString.cpp3
1 files changed, 1 insertions, 2 deletions
diff --git a/dom/xhr/XMLHttpRequestString.cpp b/dom/xhr/XMLHttpRequestString.cpp
index 8f9092243a..e0e68f3d2d 100644
--- a/dom/xhr/XMLHttpRequestString.cpp
+++ b/dom/xhr/XMLHttpRequestString.cpp
@@ -58,8 +58,7 @@ class XMLHttpRequestStringBuffer final {
// XXX: Bug 1408793 suggests encapsulating the following sequence within
// DOMString.
- nsStringBuffer* buf = nsStringBuffer::FromString(mData);
- if (buf) {
+ if (nsStringBuffer* buf = mData.GetStringBuffer()) {
// We have to use SetStringBuffer, because once we release our mutex mData
// can get mutated from some other thread while the DOMString is still
// alive.