keepforreview! Bug 42472: Spoof timezone in XSLT.

ShouldResistFingerprinting-related changes.

dom/xslt/xslt/txEXSLTFunctions.cpp

@@ -590,11 +590,11 @@ nsresult txEXSLTFunctionCall::evaluate(txIEvalContext* aContext,
       // http://exslt.org/date/functions/date-time/
 
       PRExplodedTime prtime;
-      PR_ExplodeTime(
-          PR_Now(),
-          // We are not allowed to access the Document when evaluating this, so
-          // fall back to the general function.
-          nsContentUtils::ShouldResistFingerprinting(RFPTarget::Unknown)
+      PR_ExplodeTime(PR_Now(),
+                     nsContentUtils::ShouldResistFingerprinting(
+                         "We are not allowed to access the document at this "
+                         "stage (we are given a txEarlyEvalContext context).",
+                         RFPTarget::JSDateTimeUTC)
                          ? PR_GMTParameters
                          : PR_LocalTimeParameters,
                      &prtime);