Bug 791480 - Mark printing/745025-1.html as fuzzy-if on Windows7 due to too many intermittent failures

layout/reftests/printing/reftest.list

@@ -24,5 +24,5 @@
 == 115199-2a.html 115199-2-ref.html
 == 115199-2b.html 115199-2-ref.html
 == 652178-1.html 652178-1-ref2.html
-fuzzy-if(cocoaWidget,1,5000) == 745025-1.html 745025-1-ref.html
+fuzzy-if(cocoaWidget,1,5000) fuzzy-if(/^Windows\x20NT\x206\.1/.test(http.oscpu),255,100) == 745025-1.html 745025-1-ref.html
 == 820496-1.html 820496-1-ref.html