--- a/layout/reftests/border-image/reftest.list
+++ b/layout/reftests/border-image/reftest.list
@@ -37,41 +37,41 @@ fails-if(Android) fails-if(usesRepeatRes
 == border-image-nofill-1.html border-image-nofill-1-ref.html
 == border-image-outset-resize-1.html border-image-outset-resize-1-ref.html
 fuzzy-if(asyncPan&&!layersGPUAccelerated,140,514) fuzzy-if(winWidget&&stylo,144,448) == border-image-outset-move-1.html border-image-outset-move-1-ref.html
 == border-image-style-none.html border-image-style-none-ref.html
 == border-image-style-none-length.html border-image-style-none-length-ref.html
 == border-image-style-none-auto.html border-image-style-none-auto-ref.html
 
 # border images with gradients
-fails-if(webrender) == border-image-linear-gradient.html border-image-linear-gradient-ref.html
-fuzzy(1,98) fuzzy-if(skiaContent,1,350) fails-if(webrender) == border-image-linear-gradient-slice-1.html border-image-linear-gradient-slice-1-ref.html
+fuzzy-if(webrender,1-1,1804-1804) == border-image-linear-gradient.html border-image-linear-gradient-ref.html
+fuzzy(1,98) fuzzy-if(skiaContent,1,350) fuzzy-if(webrender,1-1,37537-37537) == border-image-linear-gradient-slice-1.html border-image-linear-gradient-slice-1-ref.html
 fuzzy(1,149) fuzzy-if(OSX,1,10595) fuzzy-if(webrender,1,25007) == border-image-linear-gradient-slice-2.html border-image-linear-gradient-slice-2-ref.html
 fuzzy(1,433) fuzzy-if(skiaContent,1,2500) fuzzy-if(webrender,1,85584) == border-image-linear-gradient-slice-fill-1.html border-image-linear-gradient-slice-fill-1-ref.html
 fuzzy(1,177) fuzzy-if(OSX,1,25771) fuzzy-if(skiaContent,1,400) fuzzy-if(webrender,1,57412) == border-image-linear-gradient-slice-fill-2.html border-image-linear-gradient-slice-fill-2-ref.html
 fuzzy(1,48)  fuzzy-if(OSX,5,1676) fuzzy-if(webrender,1,4479) == border-image-linear-gradient-width.html border-image-linear-gradient-width-ref.html
 fuzzy(1,5000) fuzzy-if(OSX,1,15000) fuzzy-if(webrender,1,60355) == border-image-linear-gradient-slice-width.html border-image-linear-gradient-slice-width-ref.html
 fuzzy(1,3000) fuzzy-if(OSX,1,6000) fuzzy-if(webrender,1,26302) == border-image-linear-gradient-outset.html border-image-linear-gradient-outset-ref.html
-fuzzy(1,12) fuzzy-if(skiaContent,1,400) fails-if(webrender) == border-image-linear-gradient-repeat-repeat-1.html border-image-linear-gradient-repeat-repeat-1-ref.html
-fuzzy(1,13) fuzzy-if(skiaContent,1,300) fails-if(webrender) == border-image-linear-gradient-repeat-round-1.html border-image-linear-gradient-repeat-round-1-ref.html
-fails-if(webrender) == border-image-linear-gradient-repeat-repeat-2.html border-image-linear-gradient-repeat-repeat-2-ref.html
-fuzzy(1,576) fuzzy-if(skiaContent,1,2000) fails-if(webrender) == border-image-linear-gradient-repeat-round-2.html border-image-linear-gradient-repeat-round-2-ref.html
+fuzzy(1,12) fuzzy-if(skiaContent,1,400) fuzzy-if(webrender,1-1,26872-26872) == border-image-linear-gradient-repeat-repeat-1.html border-image-linear-gradient-repeat-repeat-1-ref.html
+fuzzy(1,13) fuzzy-if(skiaContent,1,300) fuzzy-if(webrender,1-1,27131-27131) == border-image-linear-gradient-repeat-round-1.html border-image-linear-gradient-repeat-round-1-ref.html
+fuzzy-if(webrender,1-1,65098-65098) == border-image-linear-gradient-repeat-repeat-2.html border-image-linear-gradient-repeat-repeat-2-ref.html
+fuzzy(1,576) fuzzy-if(skiaContent,1,2000) fuzzy-if(webrender,1-1,64806-64806) == border-image-linear-gradient-repeat-round-2.html border-image-linear-gradient-repeat-round-2-ref.html
 fuzzy(1,8533) fuzzy-if(webrender,1,85925) == border-image-linear-gradient-repeat-repeat-3.html border-image-linear-gradient-repeat-repeat-3-ref.html
 fuzzy(1,7161) fuzzy-if(webrender,2,107112) == border-image-linear-gradient-repeat-round-3.html border-image-linear-gradient-repeat-round-3-ref.html
 
 fuzzy-if(webrender,1,2096) == border-image-radial-gradient.html border-image-radial-gradient-ref.html
 fuzzy(1,42) fuzzy-if(skiaContent,2,20) fuzzy-if(webrender,1,37818) == border-image-radial-gradient-slice-1.html border-image-radial-gradient-slice-1-ref.html
 fuzzy(1,46) fuzzy-if(OSX,2,4472) fuzzy-if(webrender,1,26363) == border-image-radial-gradient-slice-2.html border-image-radial-gradient-slice-2-ref.html
 fuzzy(1,105) fuzzy-if(webrender,1,90873) == border-image-radial-gradient-slice-fill-1.html border-image-radial-gradient-slice-fill-1-ref.html
 fuzzy(1,139) fuzzy-if(OSX,2,4478) fuzzy-if(skiaContent,2,120) fuzzy-if(webrender,1,61729) == border-image-radial-gradient-slice-fill-2.html border-image-radial-gradient-slice-fill-2-ref.html
 fuzzy-if(skiaContent,1,2) fuzzy-if(webrender,1,4894) == border-image-radial-gradient-width.html border-image-radial-gradient-width-ref.html
 fuzzy(1,9000) fuzzy-if(webrender,3,66698) == border-image-radial-gradient-slice-width.html border-image-radial-gradient-slice-width-ref.html
 
 # OS X failures tracked in bug 957025
-fails-if(webrender) == border-image-repeating-linear-gradient.html border-image-repeating-linear-gradient-ref.html
+fuzzy-if(webrender,2-2,2907-2907) == border-image-repeating-linear-gradient.html border-image-repeating-linear-gradient-ref.html
 fuzzy(1,5608) fails-if(OSX) fuzzy-if(skiaContent,3,3157) fuzzy-if(webrender,3,95449) == border-image-repeating-linear-gradient-slice-fill-2.html border-image-repeating-linear-gradient-slice-fill-2-ref.html
 fuzzy(1,19200) fails-if(OSX) fuzzy-if(skiaContent,3,20000) fuzzy-if(webrender,3-3,18896-18896) fuzzy-if(webrender,2,112082) == border-image-repeating-linear-gradient-repeat-round-2.html border-image-repeating-linear-gradient-repeat-round-2-ref.html
 
 fuzzy(1,657) fuzzy-if(webrender,3,3008) == border-image-repeating-radial-gradient.html border-image-repeating-radial-gradient-ref.html
 fuzzy(1,510) fuzzy-if(skiaContent,3,362) fuzzy-if(webrender,3,62078) == border-image-repeating-radial-gradient-slice-1.html border-image-repeating-radial-gradient-slice-1-ref.html
 fuzzy(1,438) fuzzy-if(skiaContent,3,437) fuzzy-if(webrender,3,40536) == border-image-repeating-radial-gradient-slice-2.html border-image-repeating-radial-gradient-slice-2-ref.html
 fuzzy(1,1357) fuzzy-if(skiaContent,3,964) fuzzy-if(webrender,3,143220) == border-image-repeating-radial-gradient-slice-fill-1.html border-image-repeating-radial-gradient-slice-fill-1-ref.html
 fuzzy(1,1058) fails-if(OSX) fuzzy-if(skiaContent,3,887) fuzzy-if(webrender,3,94677) == border-image-repeating-radial-gradient-slice-fill-2.html border-image-repeating-radial-gradient-slice-fill-2-ref.html

--- a/layout/reftests/css-gradients/reftest.list
+++ b/layout/reftests/css-gradients/reftest.list
@@ -41,18 +41,18 @@ fuzzy-if(cocoaWidget,1,28) fuzzy-if(winW
 fuzzy-if(cocoaWidget,4,22317) fuzzy-if(Android,8,771) == radial-shape-closest-corner-1a.html radial-shape-closest-corner-1-ref.html
 fuzzy(1,238) fuzzy-if(cocoaWidget,4,22608) fuzzy-if((/^Windows\x20NT\x2010\.0/.test(http.oscpu)||/^Windows\x20NT\x206\./.test(http.oscpu))&&d2d,1,336) fuzzy-if(Android,8,787) fuzzy-if(skiaContent,2,300) == radial-shape-closest-corner-1b.html radial-shape-closest-corner-1-ref.html
 fuzzy-if(/^Windows\x20NT\x2010\.0/.test(http.oscpu)||/^Windows\x20NT\x206\.2/.test(http.oscpu),1,5) fuzzy-if(Android,17,3880) == radial-shape-closest-side-1a.html radial-shape-closest-side-1-ref.html
 fuzzy-if(/^Windows\x20NT\x2010\.0/.test(http.oscpu)||/^Windows\x20NT\x206\.2/.test(http.oscpu),1,5) fuzzy-if(Android,17,3880) == radial-shape-closest-side-1b.html radial-shape-closest-side-1-ref.html
 fuzzy-if(Android,8,771) == radial-shape-farthest-corner-1a.html radial-shape-farthest-corner-1-ref.html
 fails-if(gtkWidget&&/x86_64-/.test(xulRuntime.XPCOMABI)) fuzzy(1,1569) fuzzy-if(cocoaWidget,2,41281) fuzzy-if(Android,8,1091) fuzzy-if(skiaContent,2,500) == radial-shape-farthest-corner-1b.html radial-shape-farthest-corner-1-ref.html
 fuzzy-if(Android,17,13320) == radial-shape-farthest-side-1a.html radial-shape-farthest-side-1-ref.html
 fuzzy-if(Android,17,13320) == radial-shape-farthest-side-1b.html radial-shape-farthest-side-1-ref.html
-fails-if(webrender) == radial-size-1a.html radial-size-1-ref.html
-fails-if(webrender) == radial-size-1b.html radial-size-1-ref.html
+fuzzy-if(webrender,1-1,4-4) == radial-size-1a.html radial-size-1-ref.html
+fuzzy-if(webrender,1-1,4-4) == radial-size-1b.html radial-size-1-ref.html
 fuzzy-if(Android,4,248) == radial-zero-length-1a.html radial-zero-length-1-ref.html
 fuzzy-if(Android,4,248) == radial-zero-length-1b.html radial-zero-length-1-ref.html
 fuzzy-if(Android,4,248) == radial-zero-length-1c.html radial-zero-length-1-ref.html
 fuzzy-if(Android,4,248) == radial-zero-length-1d.html radial-zero-length-1-ref.html
 fuzzy-if(Android,4,248) == radial-zero-length-1e.html radial-zero-length-1-ref.html
 fuzzy-if(Android,4,248) == radial-zero-length-1f.html radial-zero-length-1-ref.html
 == radial-premul.html radial-premul-ref.html
 == repeated-final-stop-1.html repeated-final-stop-1-ref.html

--- a/layout/reftests/forms/fieldset/reftest.list
+++ b/layout/reftests/forms/fieldset/reftest.list
@@ -5,17 +5,17 @@ fuzzy-if(skiaContent,2,13) == dynamic-le
 == fieldset-scroll-1.html fieldset-scroll-1-ref.html
 == fieldset-scrolled-1.html fieldset-scrolled-1-ref.html
 == fieldset-overflow-auto-1.html fieldset-overflow-auto-1-ref.html
 fuzzy-if(winWidget&&!layersGPUAccelerated,142,276) == positioned-container-1.html positioned-container-1-ref.html
 == relpos-legend-1.html relpos-legend-1-ref.html
 == 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
-fails-if(webrender) == sticky-legend-1.html sticky-legend-1-ref.html
+fuzzy-if(webrender,18-18,2452-2452) == 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
 == fieldset-grid-001.html fieldset-grid-001-ref.html
 == fieldset-flexbox-001.html fieldset-flexbox-001-ref.html
 == fieldset-min-width-1a.html fieldset-min-width-1-ref.html
 == fieldset-min-width-1b.html fieldset-min-width-1-ref.html
 == fieldset-min-width-2a.html fieldset-min-width-2-ref.html

--- a/layout/reftests/image-element/reftest.list
+++ b/layout/reftests/image-element/reftest.list
@@ -15,19 +15,19 @@ fails-if(azureSkia) fails-if(cocoaWidget
 random-if(d2d) == element-paint-transform-02.html element-paint-transform-02-ref.html # bug 587133
 fuzzy-if(d2d&&/^Windows\x20NT\x206\.1/.test(http.oscpu),16,90) == element-paint-background-size-01.html element-paint-background-size-01-ref.html
 == element-paint-background-size-02.html element-paint-background-size-02-ref.html
 fuzzy-if(skiaContent,255,4) == element-paint-transform-repeated.html element-paint-transform-repeated-ref.html
 fuzzy-if(d2d,255,24) == element-paint-transform-03.html element-paint-transform-03-ref.html
 fuzzy-if(asyncPan,2,140) fuzzy-if(skiaContent,3,106) == element-paint-native-widget.html element-paint-native-widget-ref.html   # in -ref the scrollframe is active and layerized differently with APZ
 fails-if(usesRepeatResampling) == element-paint-subimage-sampling-restriction.html about:blank
 == element-paint-clippath.html element-paint-clippath-ref.html
-fails-if(webrender) == element-paint-sharpness-01a.html element-paint-sharpness-01b.html
+fuzzy-if(webrender,51-51,723-723) == element-paint-sharpness-01a.html element-paint-sharpness-01b.html
 fuzzy-if(skiaContent,1,326) == element-paint-sharpness-01b.html element-paint-sharpness-01c.html
-fails-if(webrender) == element-paint-sharpness-01c.html element-paint-sharpness-01d.html
+fuzzy-if(webrender,51-51,723-723) == element-paint-sharpness-01c.html element-paint-sharpness-01d.html
 == element-paint-sharpness-02a.html element-paint-sharpness-02b.html
 == element-paint-sharpness-02b.html element-paint-sharpness-02c.html
 == element-paint-paintserversize-rounding-01.html element-paint-paintserversize-rounding-01-ref.html
 fuzzy-if(skiaContent,187,1191) == element-paint-paintserversize-rounding-02.html element-paint-paintserversize-rounding-02-ref.html # Linux32 from GCC update
 == element-paint-multiple-backgrounds-01a.html element-paint-multiple-backgrounds-01-ref.html
 == element-paint-multiple-backgrounds-01b.html element-paint-multiple-backgrounds-01-ref.html
 == element-paint-multiple-backgrounds-01c.html element-paint-multiple-backgrounds-01-ref.html
 == gradient-html-01.html gradient-html-01-ref.svg

--- a/layout/reftests/svg/svg-integration/clip-path/reftest.list
+++ b/layout/reftests/svg/svg-integration/clip-path/reftest.list
@@ -49,13 +49,13 @@ fuzzy-if(webrender,64-64,1106-1106) == c
 
 == clip-path-inset-001a.html clip-path-inset-001-ref.html
 == clip-path-inset-001b.html clip-path-inset-001-ref.html
 == clip-path-inset-001c.html clip-path-inset-001-ref.html
 # Anti-aliasing behavior for masking and borders is different
 fuzzy(64,146) == clip-path-inset-002a.html clip-path-inset-002-ref.html
 fuzzy(64,146) == clip-path-inset-002b.html clip-path-inset-002-ref.html
 fuzzy(64,146) == clip-path-inset-002c.html clip-path-inset-002-ref.html
-fuzzy(64,340) fails-if(webrender) == clip-path-inset-003.html clip-path-inset-003-ref.html
+fuzzy(64,340) fuzzy-if(webrender,72-72,292-292) == clip-path-inset-003.html clip-path-inset-003-ref.html
 
 fuzzy-if(webrender,4-4,304-304) == clip-path-stroke-001.html clip-path-stroke-001-ref.html
 
 == clip-path-transform-001.html clip-path-transform-001-ref.html

--- a/layout/reftests/text-svgglyphs/reftest.list
+++ b/layout/reftests/text-svgglyphs/reftest.list
@@ -4,17 +4,17 @@ pref(gfx.font_rendering.opentype_svg.ena
 pref(gfx.font_rendering.opentype_svg.enabled,false)   != svg-glyph-positioning.svg svg-glyph-positioning-ref.svg
 pref(gfx.font_rendering.opentype_svg.enabled,true)    fuzzy-if(skiaContent,2,350) == svg-glyph-positioning.svg svg-glyph-positioning-ref.svg
 pref(gfx.font_rendering.opentype_svg.enabled,true)    == svg-glyph-html.html svg-glyph-html-ref.svg
 pref(gfx.font_rendering.opentype_svg.enabled,true)    == svg-glyph-direct.svg svg-glyph-direct-ref.svg
 pref(gfx.font_rendering.opentype_svg.enabled,true)    == svg-glyph-invalid.html svg-glyph-invalid-ref.html
 pref(gfx.font_rendering.opentype_svg.enabled,true)    == svg-glyph-objectfill-solid.svg svg-glyph-objectfill-solid-ref.svg
 pref(gfx.font_rendering.opentype_svg.enabled,true)    fuzzy-if(skiaContent,2,200) == svg-glyph-objectstroke-solid.svg svg-glyph-objectstroke-solid-ref.svg
 pref(gfx.font_rendering.opentype_svg.enabled,true)    fuzzy(1,7) fuzzy-if(gtkWidget&&/^Linux\x20x86_64/.test(http.oscpu),1,79) fuzzy-if(skiaContent,1,300) == svg-glyph-objectgradient.svg svg-glyph-objectgradient-ref.svg # see bug 871961#c5
-pref(gfx.font_rendering.opentype_svg.enabled,true)    fuzzy-if(cocoaWidget,1,7028) fuzzy-if(gtkWidget&&/^Linux\x20x86_64/.test(http.oscpu),1,23) fuzzy-if(skiaContent,1,250) fails-if(webrender) == svg-glyph-objectgradient-zoom.svg svg-glyph-objectgradient-zoom-ref.svg
+pref(gfx.font_rendering.opentype_svg.enabled,true)    fuzzy-if(cocoaWidget,1,7028) fuzzy-if(gtkWidget&&/^Linux\x20x86_64/.test(http.oscpu),1,23) fuzzy-if(skiaContent,1,250) fuzzy-if(webrender,128-128,90-90) == svg-glyph-objectgradient-zoom.svg svg-glyph-objectgradient-zoom-ref.svg
 pref(gfx.font_rendering.opentype_svg.enabled,true)    fuzzy-if(gtkWidget,1,1438) fuzzy-if(winWidget,1,1954) fuzzy-if(Android,8,3795) fuzzy-if(skiaContent,14,13000) == svg-glyph-objectpattern.svg svg-glyph-objectpattern-ref.svg
 pref(gfx.font_rendering.opentype_svg.enabled,true)    == clip.html clip-ref.html
 pref(gfx.font_rendering.opentype_svg.enabled,true)    fuzzy(1,13) fuzzy-if(gtkWidget&&/^Linux\x20x86_64/.test(http.oscpu),1,62) fuzzy-if(skiaContent,1,350) == svg-glyph-objectopacity.svg svg-glyph-objectopacity-ref.svg # see bug 871961#c5
 pref(gfx.font_rendering.opentype_svg.enabled,true)    fuzzy-if(gtkWidget,1,2268) fuzzy-if(winWidget,1,3074) fuzzy-if(Android,5,4715) fuzzy-if(skiaContent,8,13000) == svg-glyph-objectopacity2.svg svg-glyph-objectopacity2-ref.svg
 pref(gfx.font_rendering.opentype_svg.enabled,true)    fuzzy-if(skiaContent,2,200) == svg-glyph-paintnone.svg svg-glyph-paintnone-ref.svg
 pref(gfx.font_rendering.opentype_svg.enabled,true)    fuzzy-if(skiaContent,2,200) == svg-glyph-cachedopacity.svg svg-glyph-cachedopacity-ref.svg
 pref(gfx.font_rendering.opentype_svg.enabled,true)    fuzzy-if(cocoaWidget,255,100) == svg-glyph-objectvalue.svg svg-glyph-objectvalue-ref.svg
 pref(gfx.font_rendering.opentype_svg.enabled,true)    fuzzy-if(skiaContent,15,152) == svg-glyph-mask.svg svg-glyph-mask-ref.svg

--- a/layout/reftests/w3c-css/submitted/masking/reftest.list
+++ b/layout/reftests/w3c-css/submitted/masking/reftest.list
@@ -84,17 +84,17 @@ fails == mask-origin-2.html mask-origin-
 == mask-size-percent.html mask-size-percent-percent-ref.html
 == mask-size-percent-auto.html mask-size-percent-percent-ref.html
 == mask-size-percent-length.html mask-size-percent-percent-ref.html
 == mask-size-percent-percent.html mask-size-percent-percent-ref.html
 == mask-size-percent-percent-stretch.html mask-size-percent-percent-stretch-ref.html
 
 fuzzy-if(winWidget,1,21) fuzzy-if(skiaContent,1,60) fuzzy-if(webrender,64,371) == clip-path-contentBox-1a.html clip-path-geometryBox-1-ref.html
 fuzzy-if(winWidget,1,21) fuzzy-if(skiaContent,1,60) == clip-path-contentBox-1b.html clip-path-geometryBox-1-ref.html
-fuzzy-if(winWidget,1,21) fuzzy-if(skiaContent,1,60) fails-if(webrender) == clip-path-contentBox-1c.html clip-path-geometryBox-1-ref.html
+fuzzy-if(winWidget,1,21) fuzzy-if(skiaContent,1,60) fuzzy-if(webrender,64-64,371-371) == clip-path-contentBox-1c.html clip-path-geometryBox-1-ref.html
 fuzzy-if(winWidget,1,21) fuzzy-if(skiaContent,1,60) fuzzy-if(webrender,64,371) == clip-path-paddingBox-1a.html clip-path-geometryBox-1-ref.html
 fuzzy-if(winWidget,1,21) fuzzy-if(skiaContent,1,60) == clip-path-paddingBox-1b.html clip-path-geometryBox-1-ref.html
 fuzzy-if(winWidget,1,21) fuzzy-if(skiaContent,1,60) fuzzy-if(webrender,64,371) == clip-path-paddingBox-1c.html clip-path-geometryBox-1-ref.html
 fuzzy(64,370) == clip-path-borderBox-1a.html clip-path-geometryBox-1-ref.html
 fuzzy-if(winWidget,1,21) fuzzy-if(skiaContent,1,60) == clip-path-borderBox-1b.html clip-path-geometryBox-1-ref.html
 fuzzy(64,370) == clip-path-borderBox-1c.html clip-path-geometryBox-1-ref.html
 fuzzy-if(winWidget,1,21) fuzzy-if(skiaContent,1,60) == clip-path-marginBox-1a.html clip-path-geometryBox-1-ref.html
 fuzzy(64,370) == clip-path-fillBox-1a.html clip-path-geometryBox-1-ref.html