Move and rename RenderBR to LayoutBR.

LayoutTests/platform/win/fast/text/international/bidi-listbox-atsui-expected.txt

Index: LayoutTests/platform/win/fast/text/international/bidi-listbox-atsui-expected.txt
diff --git a/LayoutTests/platform/win/fast/text/international/bidi-listbox-atsui-expected.txt b/LayoutTests/platform/win/fast/text/international/bidi-listbox-atsui-expected.txt
index dd305762153d3742998bf7cfa1598eb39c38735d..f7fe4a35450181ecdd198e999339ea3847df081f 100644
--- a/LayoutTests/platform/win/fast/text/international/bidi-listbox-atsui-expected.txt
+++ b/LayoutTests/platform/win/fast/text/international/bidi-listbox-atsui-expected.txt
@@ -6,40 +6,40 @@ layer at (0,0) size 800x600
       RenderBlock {P} at (0,0) size 784x36
         RenderText {#text} at (0,0) size 594x17
           text run at (0,0) width 594: "This tests that bidirectional text is correctly rendered when using ATSUI in list box controls."
-        RenderBR {BR} at (593,14) size 1x0
+        LayoutBR {BR} at (593,14) size 1x0
         RenderText {#text} at (0,18) size 578x17
           text run at (0,18) width 578: "The order of the text below each list box should match the order of the select's option text."
       RenderBlock (anonymous) at (0,52) size 784x54
         RenderText {#text} at (0,0) size 102x17
           text run at (0,0) width 102: "1) direction: rtl;"
-        RenderBR {BR} at (101,14) size 1x0
-        RenderBR {BR} at (84,51) size 0x0
+        LayoutBR {BR} at (101,14) size 1x0
+        LayoutBR {BR} at (84,51) size 0x0
       RenderBlock {DIV} at (0,106) size 100x18
         RenderText {#text} at (31,0) size 69x17
           text run at (31,0) width 47 RTL: "\x{5D0}\x{5E4}\x{5E8}\x{5E1}\x{5DE}\x{5D5}\x{5DF}"
           text run at (77,0) width 23: "a\x{300}bc"
       RenderBlock (anonymous) at (0,124) size 784x72
-        RenderBR {BR} at (0,0) size 0x17
+        LayoutBR {BR} at (0,0) size 0x17
         RenderText {#text} at (0,18) size 102x17
           text run at (0,18) width 102: "2) direction: ltr;"
-        RenderBR {BR} at (101,32) size 1x0
-        RenderBR {BR} at (84,69) size 0x0
+        LayoutBR {BR} at (101,32) size 1x0
+        LayoutBR {BR} at (84,69) size 0x0
       RenderBlock {DIV} at (0,196) size 100x18
         RenderText {#text} at (0,0) size 69x17
           text run at (0,0) width 23: "a\x{300}bc"
           text run at (22,0) width 47 RTL: "\x{5D0}\x{5E4}\x{5E8}\x{5E1}\x{5DE}\x{5D5}\x{5DF}"
       RenderBlock (anonymous) at (0,214) size 784x72
-        RenderBR {BR} at (0,0) size 0x17
+        LayoutBR {BR} at (0,0) size 0x17
         RenderText {#text} at (0,18) size 72x17
           text run at (0,18) width 72: "3) No style"
-        RenderBR {BR} at (71,32) size 1x0
-        RenderBR {BR} at (84,69) size 0x0
+        LayoutBR {BR} at (71,32) size 1x0
+        LayoutBR {BR} at (84,69) size 0x0
       RenderBlock {DIV} at (0,286) size 100x18
         RenderText {#text} at (0,0) size 69x17
           text run at (0,0) width 23: "a\x{300}bc"
           text run at (22,0) width 47 RTL: "\x{5D0}\x{5E4}\x{5E8}\x{5E1}\x{5DE}\x{5D5}\x{5DF}"
       RenderBlock (anonymous) at (0,304) size 784x18
-        RenderBR {BR} at (0,0) size 0x17
+        LayoutBR {BR} at (0,0) size 0x17
 layer at (8,78) size 84x36 clip at (24,79) size 67x34
   RenderListBox {SELECT} at (0,18) size 84x36 [bgcolor=#FFFFFF] [border: (1px solid #A9A9A9)]
     RenderBlock {OPTION} at (16,1) size 67x17