Introduce Layout*::adjustVisualRectForRasterEffects and use it for SVG hairlines.

third_party/WebKit/LayoutTests/platform/linux/paint/invalidation/svg/tabgroup-expected.txt

 {
   "layers": [
     {
       "name": "LayoutView #document",
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "paintInvalidations": [
         {
           "object": "LayoutSVGRoot svg",
           "rect": [7, 7, 736, 573],
           "reason": "became visible"
         },
         {
+          "object": "LayoutSVGPath path",
+          "rect": [389, 37, 316, 82],
+          "reason": "layoutObject insertion"
+        },
+        {
+          "object": "LayoutSVGPath path",
+          "rect": [389, 37, 316, 82],
+          "reason": "layoutObject insertion"
+        },
+        {
+          "object": "LayoutSVGPath path",
+          "rect": [389, 37, 316, 82],
+          "reason": "layoutObject insertion"
+        },
+        {
+          "object": "LayoutSVGPath path",
+          "rect": [389, 37, 316, 82],
+          "reason": "layoutObject insertion"
+        },
+        {
           "object": "LayoutSVGContainer g",
           "rect": [390, 38, 314, 80],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGContainer g",
           "rect": [390, 38, 314, 80],
           "reason": "layoutObject insertion"
         },
         {
@@ skipping 11 matching lines @@
           "rect": [390, 38, 314, 80],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGContainer g id='tabgroupRound'",
           "rect": [390, 38, 314, 80],
           "reason": "became visible"
         },
         {
           "object": "LayoutSVGPath path",
-          "rect": [390, 38, 314, 80],
+          "rect": [262, 278, 303, 303],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path",
-          "rect": [390, 38, 314, 80],
+          "rect": [262, 278, 303, 303],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path",
-          "rect": [390, 38, 314, 80],
+          "rect": [262, 278, 303, 303],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path",
-          "rect": [390, 38, 314, 80],
+          "rect": [262, 278, 303, 303],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGContainer g",
           "rect": [263, 279, 301, 301],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGContainer g",
           "rect": [263, 279, 301, 301],
@@ skipping 14 matching lines @@
           "rect": [263, 279, 301, 301],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGContainer g id='tabgroupRectRound'",
           "rect": [263, 279, 301, 301],
           "reason": "became visible"
         },
         {
           "object": "LayoutSVGPath path",
-          "rect": [263, 279, 301, 301],
+          "rect": [506, 232, 238, 161],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path",
-          "rect": [263, 279, 301, 301],
+          "rect": [506, 232, 238, 161],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path",
-          "rect": [263, 279, 301, 301],
+          "rect": [506, 232, 238, 161],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path",
-          "rect": [263, 279, 301, 301],
+          "rect": [506, 232, 238, 161],
           "reason": "layoutObject insertion"
         },
         {
-          "object": "LayoutSVGContainer g",
-          "rect": [507, 233, 236, 159],
+          "object": "LayoutSVGPath path",
+          "rect": [6, 256, 238, 160],
           "reason": "layoutObject insertion"
         },
         {
-          "object": "LayoutSVGContainer g",
-          "rect": [507, 233, 236, 159],
+          "object": "LayoutSVGPath path",
+          "rect": [6, 256, 238, 160],
           "reason": "layoutObject insertion"
         },
         {
-          "object": "LayoutSVGContainer g",
-          "rect": [507, 233, 236, 159],
+          "object": "LayoutSVGPath path",
+          "rect": [6, 256, 238, 160],
           "reason": "layoutObject insertion"
         },
         {
-          "object": "LayoutSVGContainer g",
-          "rect": [507, 233, 236, 159],
+          "object": "LayoutSVGPath path",
+          "rect": [6, 256, 238, 160],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGContainer g",
           "rect": [507, 233, 236, 159],
           "reason": "layoutObject insertion"
         },
         {
+          "object": "LayoutSVGContainer g",
+          "rect": [507, 233, 236, 159],
+          "reason": "layoutObject insertion"
+        },
+        {
+          "object": "LayoutSVGContainer g",
+          "rect": [507, 233, 236, 159],
+          "reason": "layoutObject insertion"
+        },
+        {
+          "object": "LayoutSVGContainer g",
+          "rect": [507, 233, 236, 159],
+          "reason": "layoutObject insertion"
+        },
+        {
+          "object": "LayoutSVGContainer g",
+          "rect": [507, 233, 236, 159],
+          "reason": "layoutObject insertion"
+        },
+        {
           "object": "LayoutSVGContainer g id='tabgroupRectTriangle'",
           "rect": [507, 233, 236, 159],
           "reason": "became visible"
         },
         {
-          "object": "LayoutSVGPath path",
-          "rect": [507, 233, 236, 159],
-          "reason": "layoutObject insertion"
-        },
-        {
-          "object": "LayoutSVGPath path",
-          "rect": [507, 233, 236, 159],
-          "reason": "layoutObject insertion"
-        },
-        {
-          "object": "LayoutSVGPath path",
-          "rect": [507, 233, 236, 159],
-          "reason": "layoutObject insertion"
-        },
-        {
-          "object": "LayoutSVGPath path",
-          "rect": [507, 233, 236, 159],
-          "reason": "layoutObject insertion"
-        },
-        {
           "object": "LayoutSVGContainer g",
           "rect": [7, 257, 236, 158],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGContainer g",
           "rect": [7, 257, 236, 158],
           "reason": "layoutObject insertion"
         },
         {
@@ skipping 10 matching lines @@
           "object": "LayoutSVGContainer g",
           "rect": [7, 257, 236, 158],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGContainer g id='tabgroupTriangle'",
           "rect": [7, 257, 236, 158],
           "reason": "became visible"
         },
         {
-          "object": "LayoutSVGPath path",
-          "rect": [7, 257, 236, 158],
-          "reason": "layoutObject insertion"
-        },
-        {
-          "object": "LayoutSVGPath path",
-          "rect": [7, 257, 236, 158],
-          "reason": "layoutObject insertion"
-        },
-        {
-          "object": "LayoutSVGPath path",
-          "rect": [7, 257, 236, 158],
-          "reason": "layoutObject insertion"
-        },
-        {
-          "object": "LayoutSVGPath path",
-          "rect": [7, 257, 236, 158],
-          "reason": "layoutObject insertion"
-        },
-        {
           "object": "LayoutSVGContainer g id='tabgroupTriangle__0_content'",
           "rect": [15, 291, 211, 37],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGInlineText #text",
           "rect": [15, 291, 211, 37],
           "reason": "layoutObject insertion"
         },
         {
@@ skipping 26 matching lines @@
           "rect": [31, 404, 188, 10],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGRect rect",
           "rect": [23, 146, 188, 10],
           "reason": "layoutObject removal"
         },
         {
           "object": "LayoutSVGRect rect",
-          "rect": [38, 405, 174, 96],
+          "rect": [37, 404, 176, 98],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGRect rect",
-          "rect": [30, 147, 174, 96],
+          "rect": [29, 147, 176, 97],
           "reason": "layoutObject removal"
         },
         {
           "object": "LayoutSVGRect rect",
           "rect": [39, 404, 172, 96],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGRect rect",
           "rect": [31, 146, 172, 96],
           "reason": "layoutObject removal"
         },
         {
-          "object": "LayoutSVGContainer g",
-          "rect": [38, 7, 158, 236],
+          "object": "LayoutSVGPath path",
+          "rect": [37, 6, 160, 238],
           "reason": "layoutObject insertion"
         },
         {
-          "object": "LayoutSVGContainer g",
-          "rect": [38, 7, 158, 236],
+          "object": "LayoutSVGPath path",
+          "rect": [37, 6, 160, 238],
           "reason": "layoutObject insertion"
         },
         {
-          "object": "LayoutSVGContainer g",
-          "rect": [38, 7, 158, 236],
+          "object": "LayoutSVGPath path",
+          "rect": [37, 6, 160, 238],
           "reason": "layoutObject insertion"
         },
         {
-          "object": "LayoutSVGContainer g",
-          "rect": [38, 7, 158, 236],
+          "object": "LayoutSVGPath path",
+          "rect": [37, 6, 160, 238],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGContainer g",
           "rect": [38, 7, 158, 236],
           "reason": "layoutObject insertion"
         },
         {
+          "object": "LayoutSVGContainer g",
+          "rect": [38, 7, 158, 236],
+          "reason": "layoutObject insertion"
+        },
+        {
+          "object": "LayoutSVGContainer g",
+          "rect": [38, 7, 158, 236],
+          "reason": "layoutObject insertion"
+        },
+        {
+          "object": "LayoutSVGContainer g",
+          "rect": [38, 7, 158, 236],
+          "reason": "layoutObject insertion"
+        },
+        {
+          "object": "LayoutSVGContainer g",
+          "rect": [38, 7, 158, 236],
+          "reason": "layoutObject insertion"
+        },
+        {
           "object": "LayoutSVGContainer g id='tabgroupRect'",
           "rect": [38, 7, 158, 236],
           "reason": "became visible"
         },
         {
-          "object": "LayoutSVGPath path",
-          "rect": [38, 7, 158, 236],
-          "reason": "layoutObject insertion"
-        },
-        {
-          "object": "LayoutSVGPath path",
-          "rect": [38, 7, 158, 236],
-          "reason": "layoutObject insertion"
-        },
-        {
-          "object": "LayoutSVGPath path",
-          "rect": [38, 7, 158, 236],
-          "reason": "layoutObject insertion"
-        },
-        {
-          "object": "LayoutSVGPath path",
-          "rect": [38, 7, 158, 236],
-          "reason": "layoutObject insertion"
-        },
-        {
           "object": "LayoutSVGInlineText #text",
           "rect": [15, 291, 150, 25],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGInlineText #text",
           "rect": [15, 291, 150, 25],
           "reason": "layoutObject insertion"
         },
         {
@@ skipping 21 matching lines @@
           "rect": [7, 33, 150, 25],
           "reason": "layoutObject removal"
         },
         {
           "object": "LayoutSVGText text",
           "rect": [7, 33, 150, 25],
           "reason": "layoutObject removal"
         },
         {
           "object": "LayoutSVGPath path id='tabgroupTriangle__1'",
-          "rect": [62, 257, 66, 29],
+          "rect": [61, 256, 67, 31],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path id='tabgroupRectTriangle__0'",
-          "rect": [507, 233, 64, 18],
+          "rect": [506, 232, 66, 20],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path id='tabgroupRound__0'",
-          "rect": [390, 38, 64, 18],
+          "rect": [389, 37, 66, 20],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path id='tabgroupRectRound__0'",
-          "rect": [363, 279, 63, 63],
+          "rect": [362, 278, 65, 65],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path id='tabgroupRectTriangle__1'",
-          "rect": [569, 233, 63, 18],
+          "rect": [568, 232, 65, 20],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path id='tabgroupRound__1'",
-          "rect": [452, 38, 63, 18],
+          "rect": [451, 37, 65, 20],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path id='tabgroupRectRound__1'",
-          "rect": [415, 331, 62, 62],
+          "rect": [414, 331, 64, 63],
           "reason": "layoutObject insertion"
         },
         {
+          "object": "LayoutSVGPath path id='tabgroupTriangle__0'",
+          "rect": [6, 256, 58, 31],
+          "reason": "layoutObject insertion"
+        },
+        {
           "object": "LayoutSVGInlineText #text",
           "rect": [66, 257, 57, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGInlineText #text",
           "rect": [66, 257, 57, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGTSpan tspan",
           "rect": [66, 257, 57, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGTSpan tspan",
           "rect": [66, 257, 57, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGText text",
           "rect": [66, 257, 57, 29],
           "reason": "layoutObject insertion"
         },
         {
-          "object": "LayoutSVGPath path id='tabgroupTriangle__0'",
-          "rect": [7, 257, 56, 29],
-          "reason": "layoutObject insertion"
-        },
-        {
           "object": "LayoutSVGInlineText #text",
           "rect": [511, 234, 56, 16],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGTSpan tspan",
           "rect": [511, 234, 56, 16],
           "reason": "layoutObject insertion"
         },
         {
@@ skipping 10 matching lines @@
           "object": "LayoutSVGTSpan tspan",
           "rect": [394, 38, 56, 16],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGText text",
           "rect": [394, 38, 56, 16],
           "reason": "layoutObject insertion"
         },
         {
+          "object": "LayoutSVGPath path id='tabgroupTriangle__2'",
+          "rect": [125, 256, 55, 31],
+          "reason": "layoutObject insertion"
+        },
+        {
           "object": "LayoutSVGInlineText #text",
           "rect": [574, 234, 54, 16],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGTSpan tspan",
           "rect": [574, 234, 54, 16],
           "reason": "layoutObject insertion"
         },
         {
@@ skipping 10 matching lines @@
           "object": "LayoutSVGTSpan tspan",
           "rect": [457, 38, 54, 16],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGText text",
           "rect": [457, 38, 54, 16],
           "reason": "layoutObject insertion"
         },
         {
-          "object": "LayoutSVGPath path id='tabgroupTriangle__2'",
-          "rect": [126, 257, 53, 29],
-          "reason": "layoutObject insertion"
-        },
-        {
           "object": "LayoutSVGPath path id='tabgroupRectRound__3'",
-          "rect": [506, 423, 52, 52],
+          "rect": [506, 422, 53, 54],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path id='tabgroupRectRound__2'",
-          "rect": [467, 383, 50, 50],
+          "rect": [466, 382, 52, 52],
           "reason": "layoutObject insertion"
         },
         {
+          "object": "LayoutSVGPath path id='tabgroupRectTriangle__3'",
+          "rect": [674, 232, 51, 20],
+          "reason": "layoutObject insertion"
+        },
+        {
           "object": "LayoutSVGInlineText #text",
           "rect": [370, 285, 50, 50],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGTSpan tspan",
           "rect": [370, 285, 50, 50],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGText text",
           "rect": [370, 285, 50, 50],
           "reason": "layoutObject insertion"
         },
         {
+          "object": "LayoutSVGPath path id='tabgroupRound__3'",
+          "rect": [557, 37, 50, 20],
+          "reason": "layoutObject insertion"
+        },
+        {
           "object": "LayoutSVGInlineText #text",
           "rect": [422, 337, 49, 50],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGTSpan tspan",
           "rect": [422, 337, 49, 50],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGText text",
           "rect": [422, 337, 49, 50],
           "reason": "layoutObject insertion"
         },
         {
-          "object": "LayoutSVGPath path id='tabgroupRectTriangle__3'",
-          "rect": [675, 233, 49, 18],
+          "object": "LayoutSVGPath path id='tabgroupRectTriangle__2'",
+          "rect": [629, 232, 49, 20],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGInlineText #text",
           "rect": [11, 257, 48, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGInlineText #text",
           "rect": [11, 257, 48, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGTSpan tspan",
           "rect": [11, 257, 48, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGTSpan tspan",
           "rect": [11, 257, 48, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGText text",
           "rect": [11, 257, 48, 29],
           "reason": "layoutObject insertion"
         },
         {
-          "object": "LayoutSVGPath path id='tabgroupRound__3'",
-          "rect": [558, 38, 48, 18],
-          "reason": "layoutObject insertion"
-        },
-        {
-          "object": "LayoutSVGPath path id='tabgroupRectTriangle__2'",
-          "rect": [630, 233, 47, 18],
-          "reason": "layoutObject insertion"
-        },
-        {
           "object": "LayoutSVGPath path id='tabgroupRound__2'",
-          "rect": [513, 38, 47, 18],
+          "rect": [512, 37, 48, 20],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGInlineText #text",
           "rect": [129, 257, 45, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGInlineText #text",
           "rect": [129, 257, 45, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGTSpan tspan",
           "rect": [129, 257, 45, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGTSpan tspan",
           "rect": [129, 257, 45, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGText text",
           "rect": [129, 257, 45, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path id='tabgroupTriangle__3'",
-          "rect": [177, 257, 41, 29],
+          "rect": [176, 256, 43, 31],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGInlineText #text",
           "rect": [679, 234, 40, 16],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGTSpan tspan",
           "rect": [679, 234, 40, 16],
@@ skipping 99 matching lines @@
           "rect": [182, 257, 32, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGText text",
           "rect": [182, 257, 32, 29],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path id='tabgroupRect__0'",
-          "rect": [179, 7, 17, 64],
+          "rect": [178, 6, 19, 66],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path id='tabgroupRect__1'",
-          "rect": [179, 69, 17, 63],
+          "rect": [178, 68, 19, 65],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path id='tabgroupRect__3'",
-          "rect": [179, 175, 17, 49],
+          "rect": [178, 174, 19, 51],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGPath path id='tabgroupRect__2'",
-          "rect": [179, 130, 17, 47],
+          "rect": [178, 129, 19, 49],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGInlineText #text",
           "rect": [180, 11, 16, 56],
           "reason": "layoutObject insertion"
         },
         {
           "object": "LayoutSVGTSpan tspan",
           "rect": [180, 11, 16, 56],
@@ skipping 1233 matching lines @@
       "object": "InlineTextBox 'Biography'",
       "reason": "layoutObject insertion"
     },
     {
       "object": "LayoutSVGContainer g id='tabgroupRectRound__0_content'",
       "reason": "layoutObject insertion"
     }
   ]
 }