Bug 1407753 - Adjust test expectations for fieldset impl. r=kats

One fuzzyness decrease, and one failure because we're comparing wr to fallback.
The fallback is rendering worse than wr. The fallback should be removed when
we get proper legend support (requires upstream ClipMode api).

MozReview-Commit-ID: 2yETiZx2zxE

--HG--
extra : rebase_source : 33ee33604577d7e42d7f4ddbed2db1eb77ac54d3

layout/reftests/box-shadow/reftest.list

@@ -40,7 +40,7 @@ fuzzy(13,9445) fuzzy-if(d2d,13,10926) fails-if(webrender) == boxshadow-inset-lar
 == overflow-not-scrollable-2.html overflow-not-scrollable-2-ref.html
 fuzzy-if(webrender,1,655) == 611574-1.html 611574-1-ref.html
 fuzzy-if(webrender,4,144) == 611574-2.html 611574-2-ref.html
-fuzzy-if(winWidget,5,30) fuzzy-if(skiaContent,16,10) fuzzy-if(webrender,51-51,120-120) == fieldset.html fieldset-ref.html # minor anti-aliasing problem on Windows
+fuzzy-if(winWidget,5,30) fuzzy-if(skiaContent,16,10) fuzzy-if(webrender,51-51,80-80) == fieldset.html fieldset-ref.html # minor anti-aliasing problem on Windows
 fuzzy-if(winWidget,5,30) fuzzy-if(skiaContent,16,10) fails-if(webrender) == fieldset-inset.html fieldset-inset-ref.html # minor anti-aliasing problem on Windows
 == 1178575.html 1178575-ref.html
 == 1178575-2.html 1178575-2-ref.html

layout/reftests/forms/fieldset/reftest.list

@@ -10,7 +10,7 @@ fuzzy-if(winWidget&&!layersGPUAccelerated,142,276) == positioned-container-1.htm
 == relpos-legend-2.html relpos-legend-2-ref.html
 == relpos-legend-3.html relpos-legend-3-ref.html
 == relpos-legend-4.html relpos-legend-4-ref.html
-== sticky-legend-1.html sticky-legend-1-ref.html
+fails-if(webrender) == sticky-legend-1.html sticky-legend-1-ref.html
 fuzzy-if(skiaContent,1,40768) == abs-pos-child-sizing.html abs-pos-child-sizing-ref.html
 == overflow-hidden.html overflow-hidden-ref.html
 == legend-rtl.html legend-rtl-ref.html