Migrate svg layout tests to use slimming paint by default

LayoutTests/platform/linux/svg/repaint/inner-svg-change-viewPort-relative-expected.txt

 {
   "bounds": [800, 600],
   "children": [
     {
       "bounds": [800, 600],
       "contentsOpaque": true,
       "drawsContent": true,
       "repaintRects": [
         [180, 120, 20, 20],
         [180, 120, 20, 20],
         [180, 60, 20, 20],
         [100, 85, 100, 19],
         [100, 85, 100, 19],
         [100, 0, 100, 200],
         [80, 120, 20, 20],
         [80, 120, 20, 20],
         [80, 60, 20, 20],
         [0, 85, 100, 19],
         [0, 85, 100, 19],
         [0, 0, 200, 200],
         [0, 0, 200, 200],
         [0, 0, 100, 200],
         [0, 0, 100, 200]
+      ],
+      "paintInvalidationClients": [
+        "RootInlineBox",
+        "InlineTextBox 'right-aligned text'",
+        "LayoutSVGRoot svg",
+        "LayoutSVGViewportContainer svg id='inner'",
+        "LayoutSVGRect rect",
+        "LayoutSVGRect rect",
+        "LayoutSVGText text",
+        "LayoutSVGInlineText #text",
+        "InlineTextBox 'right-aligned text'",
+        "LayoutSVGContainer use",
+        "LayoutSVGPath polygon id='triangle'"
       ]
     }
   ]
 }