Enable slimming paint for fast/repaint

LayoutTests/LeakExpectations

Index: LayoutTests/LeakExpectations
diff --git a/LayoutTests/LeakExpectations b/LayoutTests/LeakExpectations
index 65f506541ba19c8ff74aa9bc8fa95bdd5dd99fd9..77969b3baebe6eec736004609437ef7bbbb2a608 100644
--- a/LayoutTests/LeakExpectations
+++ b/LayoutTests/LeakExpectations
@@ -66,9 +66,6 @@ crbug.com/364417 editing/selection/user-select-js-property.html [ Leak ]
 crbug.com/364417 fast/events/touch/gesture/context-menu-on-long-tap.html [ Leak ]
 crbug.com/364417 fast/repaint/japanese-rl-selection-clear.html [ Leak ]
 crbug.com/364417 fast/text/international/hebrew-selection.html [ Leak ]
-crbug.com/364417 virtual/slimmingpaint/fast/events/touch/gesture/context-menu-on-long-tap.html [ Leak ]
-crbug.com/364417 virtual/slimmingpaint/fast/repaint/japanese-rl-selection-clear.html [ Leak ]
-crbug.com/364417 virtual/slimmingpaint/fast/text/international/hebrew-selection.html [ Leak ]
 crbug.com/364417 svg/custom/bug79798.html [ Leak ]
 crbug.com/364417 virtual/slimmingpaint/svg/custom/bug79798.html [ Leak ]
 crbug.com/364417 imported/web-platform-tests/shadow-dom/elements-and-dom-objects/shadowroot-object/shadowroot-methods/test-004.html [ Leak ]
@@ -117,8 +114,6 @@ crbug.com/482050 svg/zoom/text/absolute-sized-document-scrollbars.svg [ Leak ]
 crbug.com/482050 svg/zoom/text/relative-sized-document-scrollbars.svg [ Leak ]
 crbug.com/482050 svg/zoom/text/zoom-coords-viewattr-01-b.svg [ Leak ]
 crbug.com/482050 svg/zoom/text/zoom-foreignObject.svg [ Leak ]
-crbug.com/482050 virtual/slimmingpaint/fast/repaint/fixed-move-after-keyboard-scroll.html [ Leak ]
-crbug.com/482050 virtual/slimmingpaint/fast/repaint/repaint-tile-clipped.html [ Leak ]
 crbug.com/482050 virtual/slimmingpaint/svg/as-object/nested-embedded-svg-size-changes.html [ Leak ]
 crbug.com/482050 virtual/slimmingpaint/svg/custom/hit-test-unclosed-subpaths.svg [ Leak ]
 crbug.com/482050 virtual/slimmingpaint/svg/custom/hit-test-with-br.xhtml [ Leak ]