Enable slimming paint for fast/repaint

LayoutTests/fast/repaint/line-flow-with-floats-5-expected.txt

Index: LayoutTests/fast/repaint/line-flow-with-floats-5-expected.txt
diff --git a/LayoutTests/fast/repaint/line-flow-with-floats-5-expected.txt b/LayoutTests/fast/repaint/line-flow-with-floats-5-expected.txt
index b490a0191337e24b954c9acc8c8acd64cc31cb17..728215ded5a6830f2b8ef26df82428c27c7c0eaa 100644
--- a/LayoutTests/fast/repaint/line-flow-with-floats-5-expected.txt
+++ b/LayoutTests/fast/repaint/line-flow-with-floats-5-expected.txt
@@ -14,6 +14,32 @@
         [49, 368, 301, 18],
         [46, 353, 16, 64],
         [8, 350, 418, 72]
+      ],
+      "paintInvalidationClients": [
+        "InlineTextBox 'that it was a very\n'",
+        "InlineTextBox 'difficult game indeed.\n'",
+        "RootInlineBox",
+        "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",
+        "LayoutBlockFlow P",
+        "LayoutBlockFlow (floating) SPAN id='blueFloat'",
+        "LayoutText #text",
+        "InlineTextBox 'difficult game indeed.\n'",
+        "LayoutText #text",
+        "InlineTextBox 'The players all played at once without waiting\n'",
+        "LayoutText #text",
+        "InlineTextBox 'for'",
+        "InlineTextBox 'turns,\n'",
+        "InlineTextBox 'quarrelling all the while, and fighting for'",
+        "InlineTextBox 'the hedgehogs; and in\n'",
+        "InlineTextBox 'a very short time '"
       ]
     }
   ]