Use w3c test harness in editing/selection/vertical-*.html tests 3/3

third_party/WebKit/LayoutTests/platform/mac/editing/selection/vertical-rl-rtl-extend-line-backward-br-expected.txt

Index: third_party/WebKit/LayoutTests/platform/mac/editing/selection/vertical-rl-rtl-extend-line-backward-br-expected.txt
diff --git a/third_party/WebKit/LayoutTests/platform/mac/editing/selection/vertical-rl-rtl-extend-line-backward-br-expected.txt b/third_party/WebKit/LayoutTests/platform/mac/editing/selection/vertical-rl-rtl-extend-line-backward-br-expected.txt
deleted file mode 100644
index 978aed7c80411ee13fd38dc99fece98c1c71eb94..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/platform/mac/editing/selection/vertical-rl-rtl-extend-line-backward-br-expected.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-layer at (0,0) size 800x600
-  LayoutView at (0,0) size 800x600
-layer at (0,0) size 800x198
-  LayoutBlockFlow {HTML} at (0,0) size 800x198.34
-    LayoutBlockFlow {BODY} at (8,16) size 784x169.34
-      LayoutBlockFlow {P} at (0,0) size 784x18
-        LayoutText {#text} at (0,0) size 399x18
-          text run at (0,0) width 399: "This tests horizontal caret movement in vertical writing mode."
-      LayoutBlockFlow {DIV} at (0,34) size 88x135.34
-        LayoutBlockFlow {P} at (20,0) size 48x135.34
-          LayoutText {#text} at (1,38) size 23x98
-            text run at (1,38) width 97 RTL: "\x{5D0}\x{5E0}\x{5D9} \x{5D7}\x{5EA}\x{5D5}\x{5DC}."
-          LayoutBR {BR} at (1,38) size 23x1
-          LayoutText {#text} at (25,28) size 23x108
-            text run at (25,28) width 107 RTL: "\x{5D0}\x{5D9}\x{5DF} \x{5DC}\x{5D9} \x{5E9}\x{5DD}."
-      LayoutBlockFlow {PRE} at (0,182.34) size 784x0
-selection start: position 5 of child 0 {#text} of child 1 {P} of child 3 {DIV} of body
-selection end:   position 5 of child 2 {#text} of child 1 {P} of child 3 {DIV} of body