Revert FCM text-based-repaint change and rebaselines

LayoutTests/platform/mac/fast/repaint/bugzilla-6278-expected.txt

 BUG ID: Bugzilla bug 6278 REGRESSION: Incomplete repaint when table cell width changes during layout
 
 TEST PASS: The purple and green rects will resize, and there will remain separated by a blue horizontal line.
 
 TEST FAIL: The purple and green rects will resize, but the blue separator will disappear.
 
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-(GraphicsLayer
-  (bounds 800.00 600.00)
-  (children 1
-    (GraphicsLayer
-      (bounds 800.00 600.00)
-      (contentsOpaque 1)
-      (drawsContent 1)
-      (repaint rects
-        (rect 10.00 132.00 292.00 199.00)
-        (rect 304.00 132.00 2.00 199.00)
-        (rect 10.00 132.00 292.00 144.00)
-        (rect 10.00 132.00 242.00 180.00)
-        (rect 252.00 281.00 50.00 50.00)
-        (rect 10.00 132.00 242.00 199.00)
-        (rect 10.00 132.00 242.00 235.00)
-        (rect 304.00 132.00 52.00 199.00)
-        (rect 304.00 132.00 52.00 199.00)
-        (rect 304.00 132.00 52.00 235.00)
-        (rect 304.00 132.00 52.00 199.00)
-        (rect 254.00 132.00 52.00 235.00)
-        (rect 8.00 333.00 300.00 36.00)
-        (rect 8.00 333.00 784.00 36.00)
-        (rect 0.00 341.00 800.00 36.00)
-      )
-    )
-  )
+(repaint rects
+  (rect 10 132 292 199)
+  (rect 304 132 2 199)
+  (rect 10 132 292 144)
+  (rect 10 132 242 180)
+  (rect 252 281 50 50)
+  (rect 10 132 242 199)
+  (rect 10 132 242 235)
+  (rect 304 132 52 199)
+  (rect 304 132 52 199)
+  (rect 304 132 52 235)
+  (rect 304 132 52 199)
+  (rect 254 132 52 235)
+  (rect 8 333 300 36)
+  (rect 8 333 784 36)
+  (rect 0 341 800 36)
 )