1 files changed, 12 insertions, 0 deletions
diff --git a/dom/canvas/WebGLContextUtils.cpp b/dom/canvas/WebGLContextUtils.cpp
index 9c0d349397..3fd32eb301 100644
--- a/dom/canvas/WebGLContextUtils.cpp
+++ b/dom/canvas/WebGLContextUtils.cpp
@@ -874,4 +874,16 @@ InfoFrom(WebGLTexImageFunc func, WebGLTexDimensions dims)
     }
 }
 
+JS::Value
+StringValue(JSContext* cx, const nsAString& str, ErrorResult& er)
+{
+    JSString* jsStr = JS_NewUCStringCopyN(cx, str.BeginReading(), str.Length());
+    if (!jsStr) {
+        er.Throw(NS_ERROR_OUT_OF_MEMORY);
+        return JS::NullValue();
+    }
+
+    return JS::StringValue(jsStr);
+}
+
 } // namespace mozilla