Bring back multicol reftests that got DRTified for impl-side painting.

LayoutTests/platform/win/virtual/regionbasedmulticol/fast/multicol/layers-in-multicol-expected.txt

Index: LayoutTests/platform/win/virtual/regionbasedmulticol/fast/multicol/layers-in-multicol-expected.txt
diff --git a/LayoutTests/platform/win/virtual/regionbasedmulticol/fast/multicol/layers-in-multicol-expected.txt b/LayoutTests/platform/win/virtual/regionbasedmulticol/fast/multicol/layers-in-multicol-expected.txt
deleted file mode 100644
index 70c6d06efd92b498f5a83d233672e8cc84e86975..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/win/virtual/regionbasedmulticol/fast/multicol/layers-in-multicol-expected.txt
+++ /dev/null
@@ -1,117 +0,0 @@
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-  RenderView at (0,0) size 800x600
-layer at (0,0) size 800x314
-  RenderBlock {HTML} at (0,0) size 800x314
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-        RenderText {#text} at (0,0) size 391x17
-          text run at (0,0) width 391: "Test layers which are fully contained within a single column."
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-        RenderText {#text} at (0,0) size 35x17
-          text run at (0,0) width 35: "RTL:"
-layer at (8,68) size 310x110
-  RenderBlock {DIV} at (0,52) size 310x110 [border: (5px solid #800000)]
-    RenderMultiColumnSet at (5,5) size 300x100
-layer at (13,73) size 100x280
-  RenderMultiColumnFlowThread at (5,5) size 100x280
-    RenderText {#text} at (0,1) size 32x17
-      text run at (0,1) width 32: "line1"
-    RenderBR {BR} at (31,1) size 1x17
-    RenderText {#text} at (0,21) size 32x17
-      text run at (0,21) width 32: "line2"
-    RenderBR {BR} at (31,21) size 1x17
-    RenderText {#text} at (0,41) size 32x17
-      text run at (0,41) width 32: "line3"
-    RenderBR {BR} at (31,41) size 1x17
-    RenderText {#text} at (0,61) size 32x17
-      text run at (0,61) width 32: "line4"
-    RenderBR {BR} at (31,61) size 1x17
-    RenderText {#text} at (0,81) size 32x17
-      text run at (0,81) width 32: "line5"
-    RenderBR {BR} at (31,81) size 1x17
-    RenderText {#text} at (0,101) size 32x17
-      text run at (0,101) width 32: "line6"
-    RenderBR {BR} at (31,101) size 1x17
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-    RenderText {#text} at (16,121) size 36x17
-      text run at (16,121) width 36: " line7"
-    RenderBR {BR} at (51,121) size 1x17
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-      text run at (0,141) width 32: "line8"
-    RenderBR {BR} at (31,141) size 1x17
-    RenderBR {BR} at (55,161) size 1x17
-    RenderText {#text} at (0,181) size 40x17
-      text run at (0,181) width 40: "line10"
-    RenderBR {BR} at (39,181) size 1x17
-    RenderText {#text} at (0,201) size 40x17
-      text run at (0,201) width 40: "line11"
-    RenderBR {BR} at (39,201) size 1x17
-    RenderText {#text} at (0,221) size 40x17
-      text run at (0,221) width 40: "line12"
-    RenderBR {BR} at (39,221) size 1x17
-    RenderBR {BR} at (63,241) size 1x17
-    RenderText {#text} at (0,261) size 40x17
-      text run at (0,261) width 40: "line14"
-layer at (8,196) size 310x110
-  RenderBlock {DIV} at (0,180) size 310x110 [border: (5px solid #800000)]
-    RenderMultiColumnSet at (5,5) size 300x100
-layer at (213,201) size 100x280
-  RenderMultiColumnFlowThread at (205,5) size 100x280
-    RenderText {#text} at (68,1) size 32x17
-      text run at (68,1) width 32: "line1"
-    RenderBR {BR} at (68,1) size 1x17
-    RenderText {#text} at (68,21) size 32x17
-      text run at (68,21) width 32: "line2"
-    RenderBR {BR} at (68,21) size 1x17
-    RenderText {#text} at (68,41) size 32x17
-      text run at (68,41) width 32: "line3"
-    RenderBR {BR} at (68,41) size 1x17
-    RenderText {#text} at (68,61) size 32x17
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-    RenderText {#text} at (68,81) size 32x17
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-    RenderBR {BR} at (68,81) size 1x17
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-      text run at (48,121) width 32: "line7"
-      text run at (80,121) width 4 RTL: " "
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-    RenderBR {BR} at (68,141) size 1x17
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-      text run at (60,181) width 40: "line10"
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-      text run at (60,201) width 40: "line11"
-    RenderBR {BR} at (60,201) size 1x17
-    RenderText {#text} at (60,221) size 40x17
-      text run at (60,221) width 40: "line12"
-    RenderBR {BR} at (60,221) size 1x17
-    RenderBR {BR} at (36,241) size 1x17
-    RenderText {#text} at (60,261) size 40x17
-      text run at (60,261) width 40: "line14"
-layer at (13,69) size 56x17
-  RenderInline (relative positioned) {SPAN} at (0,0) size 56x17 [color=#008000]
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-      text run at (0,161) width 56: "relative9"
-layer at (13,73) size 64x17 transparent
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-layer at (213,197) size 56x17
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