Revert FCM text-based-repaint change and rebaselines

LayoutTests/platform/mac-retina/fast/images/repaint-subrect-grid-expected.txt

Index: LayoutTests/platform/mac-retina/fast/images/repaint-subrect-grid-expected.txt
diff --git a/LayoutTests/platform/mac-retina/fast/images/repaint-subrect-grid-expected.txt b/LayoutTests/platform/mac-retina/fast/images/repaint-subrect-grid-expected.txt
deleted file mode 100644
index d4385c243140406c8eeba824894f05e9a3188e37..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/mac-retina/fast/images/repaint-subrect-grid-expected.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-(GraphicsLayer
-  (bounds 800.00 600.00)
-  (children 1
-    (GraphicsLayer
-      (bounds 800.00 600.00)
-      (contentsOpaque 1)
-      (drawsContent 1)
-      (repaint rects
-        (rect 0.00 0.00 18.00 18.00)
-        (rect 0.00 0.00 18.00 18.00)
-        (rect 18.00 0.00 19.00 18.00)
-        (rect 18.00 0.00 19.00 18.00)
-        (rect 37.00 0.00 18.00 18.00)
-        (rect 37.00 0.00 18.00 18.00)
-        (rect 0.00 18.00 9.00 19.00)
-        (rect 0.00 18.00 9.00 19.00)
-        (rect 9.00 18.00 18.00 19.00)
-        (rect 9.00 18.00 18.00 19.00)
-        (rect 28.00 18.00 18.00 19.00)
-        (rect 28.00 18.00 18.00 19.00)
-        (rect 46.00 18.00 18.00 19.00)
-        (rect 46.00 18.00 18.00 19.00)
-        (rect 0.00 37.00 18.00 18.00)
-        (rect 0.00 37.00 18.00 18.00)
-        (rect 18.00 37.00 19.00 18.00)
-        (rect 18.00 37.00 19.00 18.00)
-        (rect 37.00 37.00 18.00 18.00)
-        (rect 37.00 37.00 18.00 18.00)
-      )
-    )
-  )
-)
-