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

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

Index: LayoutTests/platform/mac/virtual/regionbasedmulticol/fast/multicol/layers-in-multicol-expected.txt
diff --git a/LayoutTests/platform/mac/virtual/regionbasedmulticol/fast/multicol/layers-in-multicol-expected.txt b/LayoutTests/platform/mac/virtual/regionbasedmulticol/fast/multicol/layers-in-multicol-expected.txt
deleted file mode 100644
index 021054ca8c3a15ec55aa1ef829a6746b7a994917..0000000000000000000000000000000000000000
--- a/LayoutTests/platform/mac/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 800x308
-  RenderBlock {HTML} at (0,0) size 800x308
-    RenderBody {BODY} at (8,16) size 784x284
-      RenderBlock {P} at (0,0) size 784x16
-        RenderText {#text} at (0,0) size 391x16
-          text run at (0,0) width 391: "Test layers which are fully contained within a single column."
-      RenderBlock (anonymous) at (0,32) size 784x16
-        RenderText {#text} at (0,0) size 35x16
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-      RenderBlock (anonymous) at (0,158) size 784x16
-        RenderText {#text} at (0,0) size 35x16
-          text run at (0,0) width 35: "RTL:"
-layer at (8,64) size 310x110
-  RenderBlock {DIV} at (0,48) size 310x110 [border: (5px solid #800000)]
-    RenderMultiColumnSet at (5,5) size 300x100
-layer at (13,69) size 100x280
-  RenderMultiColumnFlowThread at (5,5) size 100x280
-    RenderText {#text} at (0,2) size 32x16
-      text run at (0,2) width 32: "line1"
-    RenderBR {BR} at (31,2) size 1x16
-    RenderText {#text} at (0,22) size 32x16
-      text run at (0,22) width 32: "line2"
-    RenderBR {BR} at (31,22) size 1x16
-    RenderText {#text} at (0,42) size 32x16
-      text run at (0,42) width 32: "line3"
-    RenderBR {BR} at (31,42) size 1x16
-    RenderText {#text} at (0,62) size 32x16
-      text run at (0,62) width 32: "line4"
-    RenderBR {BR} at (31,62) size 1x16
-    RenderText {#text} at (0,82) size 32x16
-      text run at (0,82) width 32: "line5"
-    RenderBR {BR} at (31,82) size 1x16
-    RenderText {#text} at (0,102) size 32x16
-      text run at (0,102) width 32: "line6"
-    RenderBR {BR} at (31,102) size 1x16
-    RenderBlock {DIV} at (0,124) size 16x10 [bgcolor=#008000]
-    RenderText {#text} at (16,122) size 36x16
-      text run at (16,122) width 36: " line7"
-    RenderBR {BR} at (51,122) size 1x16
-    RenderText {#text} at (0,142) size 32x16
-      text run at (0,142) width 32: "line8"
-    RenderBR {BR} at (31,142) size 1x16
-    RenderBR {BR} at (55,162) size 1x16
-    RenderText {#text} at (0,182) size 40x16
-      text run at (0,182) width 40: "line10"
-    RenderBR {BR} at (39,182) size 1x16
-    RenderText {#text} at (0,202) size 40x16
-      text run at (0,202) width 40: "line11"
-    RenderBR {BR} at (39,202) size 1x16
-    RenderText {#text} at (0,222) size 40x16
-      text run at (0,222) width 40: "line12"
-    RenderBR {BR} at (39,222) size 1x16
-    RenderBR {BR} at (63,242) size 1x16
-    RenderText {#text} at (0,262) size 40x16
-      text run at (0,262) width 40: "line14"
-layer at (8,190) size 310x110
-  RenderBlock {DIV} at (0,174) size 310x110 [border: (5px solid #800000)]
-    RenderMultiColumnSet at (5,5) size 300x100
-layer at (213,195) size 100x280
-  RenderMultiColumnFlowThread at (205,5) size 100x280
-    RenderText {#text} at (68,2) size 32x16
-      text run at (68,2) width 32: "line1"
-    RenderBR {BR} at (68,2) size 1x16
-    RenderText {#text} at (68,22) size 32x16
-      text run at (68,22) width 32: "line2"
-    RenderBR {BR} at (68,22) size 1x16
-    RenderText {#text} at (68,42) size 32x16
-      text run at (68,42) width 32: "line3"
-    RenderBR {BR} at (68,42) size 1x16
-    RenderText {#text} at (68,62) size 32x16
-      text run at (68,62) width 32: "line4"
-    RenderBR {BR} at (68,62) size 1x16
-    RenderText {#text} at (68,82) size 32x16
-      text run at (68,82) width 32: "line5"
-    RenderBR {BR} at (68,82) size 1x16
-    RenderText {#text} at (68,102) size 32x16
-      text run at (68,102) width 32: "line6"
-    RenderBR {BR} at (68,102) size 1x16
-    RenderBlock {DIV} at (84,124) size 16x10 [bgcolor=#008000]
-    RenderText {#text} at (48,122) size 36x16
-      text run at (48,122) width 32: "line7"
-      text run at (80,122) width 4 RTL: " "
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-    RenderText {#text} at (68,142) size 32x16
-      text run at (68,142) width 32: "line8"
-    RenderBR {BR} at (68,142) size 1x16
-    RenderBR {BR} at (44,162) size 1x16
-    RenderText {#text} at (60,182) size 40x16
-      text run at (60,182) width 40: "line10"
-    RenderBR {BR} at (60,182) size 1x16
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-      text run at (60,202) width 40: "line11"
-    RenderBR {BR} at (60,202) size 1x16
-    RenderText {#text} at (60,222) size 40x16
-      text run at (60,222) width 40: "line12"
-    RenderBR {BR} at (60,222) size 1x16
-    RenderBR {BR} at (36,242) size 1x16
-    RenderText {#text} at (60,262) size 40x16
-      text run at (60,262) width 40: "line14"
-layer at (13,65) size 56x16
-  RenderInline (relative positioned) {SPAN} at (0,0) size 56x16 [color=#008000]
-    RenderText {#text} at (0,162) size 56x16
-      text run at (0,162) width 56: "relative9"
-layer at (13,69) size 64x16 transparent
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-      text run at (0,242) width 64: "opacity13"
-layer at (213,191) size 56x16
-  RenderInline (relative positioned) {SPAN} at (0,0) size 56x16 [color=#008000]
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-layer at (213,195) size 64x16 transparent
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