Enable slimming paint for fast/repaint

LayoutTests/platform/win/fast/repaint/line-flow-with-floats-4-expected.txt

Index: LayoutTests/platform/win/fast/repaint/line-flow-with-floats-4-expected.txt
diff --git a/LayoutTests/platform/win/fast/repaint/line-flow-with-floats-4-expected.txt b/LayoutTests/platform/win/fast/repaint/line-flow-with-floats-4-expected.txt
index 06fe52c16ca0575d5c69a375edf493530fddd8d8..16c464d269f0d677d3c0f01968844feabf3a3a21 100644
--- a/LayoutTests/platform/win/fast/repaint/line-flow-with-floats-4-expected.txt
+++ b/LayoutTests/platform/win/fast/repaint/line-flow-with-floats-4-expected.txt
@@ -9,6 +9,33 @@
         [372, 435, 48, 16],
         [369, 422, 52, 53],
         [8, 368, 418, 107]
+      ],
+      "paintInvalidationClients": [
+        "InlineTextBox 'The players all played at once without waiting'",
+        "RootInlineBox",
+        "InlineTextBox 'for turns,\n'",
+        "InlineTextBox 'quarrelling all the while, and fighting'",
+        "RootInlineBox",
+        "InlineTextBox 'for the hedgehogs; and in\n'",
+        "InlineTextBox 'a very short time '",
+        "InlineTextBox 'the'",
+        "RootInlineBox",
+        "InlineTextBox 'Queen'",
+        "InlineTextBox ' was in a furious passion, and went\n'",
+        "InlineTextBox 'stamping'",
+        "RootInlineBox",
+        "InlineTextBox 'about, and shouting \u2018Off with his head!\u2019 or \u2018Off with'",
+        "RootInlineBox",
+        "InlineTextBox 'her head!\u2019 about once in a minute.\n'",
+        "RootInlineBox",
+        "LayoutBlockFlow P",
+        "LayoutBlockFlow (floating) SPAN id='greenFloat'",
+        "LayoutText #text",
+        "InlineTextBox ' was in a furious passion, and went\n'",
+        "InlineTextBox 'stamping'",
+        "InlineTextBox 'about, and shouting \u2018Off with his head!\u2019 or \u2018Off with\n'",
+        "InlineTextBox 'her'",
+        "InlineTextBox 'head!\u2019 about once in a minute.\n'"
       ]
     }
   ]