Fix problems with flakes in SVG LayoutTests by reordering arithmetic.

LayoutTests/platform/mac/svg/filters/feColorMatrix-values-expected.txt

Index: LayoutTests/platform/mac/svg/filters/feColorMatrix-values-expected.txt
diff --git a/LayoutTests/platform/mac/svg/filters/feColorMatrix-values-expected.txt b/LayoutTests/platform/mac/svg/filters/feColorMatrix-values-expected.txt
index 729456501b6bd180c376e462170406e1cae77e07..dbb7867f9298a133a182344fa91968a7980a021a 100644
--- a/LayoutTests/platform/mac/svg/filters/feColorMatrix-values-expected.txt
+++ b/LayoutTests/platform/mac/svg/filters/feColorMatrix-values-expected.txt
@@ -1,7 +1,7 @@
 layer at (0,0) size 800x600
   RenderView at (0,0) size 800x600
 layer at (0,0) size 800x600
-  RenderSVGRoot {svg} at (0,0) size 441x441
+  RenderSVGRoot {svg} at (0,0) size 440x440
     RenderSVGHiddenContainer {defs} at (0,0) size 0x0
       RenderSVGResourceFilter {filter} [id="satfull"] [filterUnits=objectBoundingBox] [primitiveUnits=userSpaceOnUse]
         [feColorMatrix type="SATURATE" values="1.00"]
@@ -22,8 +22,8 @@ layer at (0,0) size 800x600
       RenderSVGResourceFilter {filter} [id="huerange"] [filterUnits=objectBoundingBox] [primitiveUnits=userSpaceOnUse]
         [feColorMatrix type="HUEROTATE" values="720.00"]
           [SourceGraphic]
-    RenderSVGContainer {g} at (0,0) size 441x441
-      RenderSVGRect {rect} at (0,0) size 441x441 [fill={[type=SOLID] [color=#00FF00]}] [x=0.00] [y=0.00] [width=400.00] [height=400.00]
+    RenderSVGContainer {g} at (0,0) size 440x440
+      RenderSVGRect {rect} at (0,0) size 440x440 [fill={[type=SOLID] [color=#00FF00]}] [x=0.00] [y=0.00] [width=400.00] [height=400.00]
         [filter="satfull"] RenderSVGResourceFilter {filter} at (-40,-40) size 480x480
       RenderSVGRect {rect} at (2,2) size 196x396 [fill={[type=SOLID] [color=#FF0000]}] [x=2.00] [y=2.00] [width=196.00] [height=396.00]
       RenderSVGText {text} at (10,22) size 170x24 contains 1 chunk(s)
@@ -32,7 +32,7 @@ layer at (0,0) size 800x600
       RenderSVGText {text} at (10,52) size 69x24 contains 1 chunk(s)
         RenderSVGInlineText {#text} at (0,0) size 69x24
           chunk 1 text run 1 at (10.00,70.00) startOffset 0 endOffset 7 width 68.65: "matrix."
-      RenderSVGRect {rect} at (0,0) size 221x115 [fill={[type=SOLID] [color=#00FF00]}] [x=0.00] [y=0.00] [width=200.00] [height=104.00]
+      RenderSVGRect {rect} at (0,0) size 220x115 [fill={[type=SOLID] [color=#00FF00]}] [x=0.00] [y=0.00] [width=200.00] [height=104.00]
         [filter="matnull"] RenderSVGResourceFilter {filter} at (-20,-10.40) size 240x124.80
       RenderSVGText {text} at (10,122) size 170x24 contains 1 chunk(s)
         RenderSVGInlineText {#text} at (0,0) size 170x24
@@ -40,7 +40,7 @@ layer at (0,0) size 800x600
       RenderSVGText {text} at (10,152) size 81x24 contains 1 chunk(s)
         RenderSVGInlineText {#text} at (0,0) size 81x24
           chunk 1 text run 1 at (10.00,170.00) startOffset 0 endOffset 9 width 80.63: "saturate."
-      RenderSVGRect {rect} at (0,89) size 221x126 [fill={[type=SOLID] [color=#00FF00]}] [x=0.00] [y=100.00] [width=200.00] [height=104.00]
+      RenderSVGRect {rect} at (0,89) size 220x126 [fill={[type=SOLID] [color=#00FF00]}] [x=0.00] [y=100.00] [width=200.00] [height=104.00]
         [filter="satnull"] RenderSVGResourceFilter {filter} at (-20,89.60) size 240x124.80
       RenderSVGText {text} at (10,222) size 170x24 contains 1 chunk(s)
         RenderSVGInlineText {#text} at (0,0) size 170x24
@@ -48,7 +48,7 @@ layer at (0,0) size 800x600
       RenderSVGText {text} at (10,252) size 104x24 contains 1 chunk(s)
         RenderSVGInlineText {#text} at (0,0) size 104x24
           chunk 1 text run 1 at (10.00,270.00) startOffset 0 endOffset 10 width 103.30: "hueRotate."
-      RenderSVGRect {rect} at (0,189) size 221x126 [fill={[type=SOLID] [color=#00FF00]}] [x=0.00] [y=200.00] [width=200.00] [height=104.00]
+      RenderSVGRect {rect} at (0,189) size 220x126 [fill={[type=SOLID] [color=#00FF00]}] [x=0.00] [y=200.00] [width=200.00] [height=104.00]
         [filter="huenull"] RenderSVGResourceFilter {filter} at (-20,189.60) size 240x124.80
       RenderSVGText {text} at (10,322) size 151x24 contains 1 chunk(s)
         RenderSVGInlineText {#text} at (0,0) size 151x24
@@ -56,7 +56,7 @@ layer at (0,0) size 800x600
       RenderSVGText {text} at (10,352) size 104x24 contains 1 chunk(s)
         RenderSVGInlineText {#text} at (0,0) size 104x24
           chunk 1 text run 1 at (10.00,370.00) startOffset 0 endOffset 10 width 103.30: "hueRotate."
-      RenderSVGRect {rect} at (0,290) size 221x119 [fill={[type=SOLID] [color=#00FF00]}] [x=0.00] [y=300.00] [width=200.00] [height=99.00]
+      RenderSVGRect {rect} at (0,290) size 220x119 [fill={[type=SOLID] [color=#00FF00]}] [x=0.00] [y=300.00] [width=200.00] [height=99.00]
         [filter="huerange"] RenderSVGResourceFilter {filter} at (-20,290.10) size 240x118.80
       RenderSVGRect {rect} at (182,0) size 236x108 [fill={[type=SOLID] [color=#FF0000]}] [x=202.00] [y=2.00] [width=196.00] [height=96.00]
         [filter="matbad"] RenderSVGResourceFilter {filter} at (182.40,-7.60) size 235.20x115.20
@@ -97,7 +97,7 @@ layer at (0,0) size 800x600
       RenderSVGRect {rect} at (182,292) size 236x116 [fill={[type=SOLID] [color=#FF0000]}] [x=202.00] [y=302.00] [width=196.00] [height=96.00]
         [filter="satrange"] RenderSVGResourceFilter {filter} at (182.40,292.40) size 235.20x115.20
       RenderSVGText {text} at (210,322) size 132x24 contains 1 chunk(s)
-        [filter="satrange"] RenderSVGResourceFilter {filter} at (196.87,319.60) size 157.58x28.80
+        [filter="satrange"] RenderSVGResourceFilter {filter} at (196.87,319.60) size 157.57x28.80
         RenderSVGInlineText {#text} at (0,0) size 132x24
           [filter="satrange"] RenderSVGResourceFilter {filter} at (196.87,319.60) size 157.57x28.80
           chunk 1 text run 1 at (210.00,340.00) startOffset 0 endOffset 13 width 131.31: "Saturate must"