Move and rename RenderBR to LayoutBR.

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

Index: LayoutTests/platform/linux/fast/text/international/bidi-listbox-expected.txt
diff --git a/LayoutTests/platform/linux/fast/text/international/bidi-listbox-expected.txt b/LayoutTests/platform/linux/fast/text/international/bidi-listbox-expected.txt
index 1c713e617683dddef38cd1a1e3abb9da80608b63..536de9e7fa3da5c7587934faa128d62b042910e7 100644
--- a/LayoutTests/platform/linux/fast/text/international/bidi-listbox-expected.txt
+++ b/LayoutTests/platform/linux/fast/text/international/bidi-listbox-expected.txt
@@ -6,40 +6,40 @@ layer at (0,0) size 800x600
       RenderBlock {P} at (0,0) size 784x40
         RenderText {#text} at (0,0) size 430x19
           text run at (0,0) width 430: "This tests that bidirectional text is correctly rendered in list box controls."
-        RenderBR {BR} at (430,15) size 0x0
+        LayoutBR {BR} at (430,15) size 0x0
         RenderText {#text} at (0,20) size 543x19
           text run at (0,20) width 543: "The order of the text below each list box should match the order of the select's option text."
       RenderBlock (anonymous) at (0,56) size 784x56
         RenderText {#text} at (0,0) size 92x19
           text run at (0,0) width 92: "1) direction: rtl;"
-        RenderBR {BR} at (92,15) size 0x0
-        RenderBR {BR} at (84,52) size 0x0
+        LayoutBR {BR} at (92,15) size 0x0
+        LayoutBR {BR} at (84,52) size 0x0
       RenderBlock {DIV} at (0,112) size 100x20
         RenderText {#text} at (31,0) size 69x19
           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 (78,0) width 22: "abc"
       RenderBlock (anonymous) at (0,132) size 784x76
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
         RenderText {#text} at (0,20) size 92x19
           text run at (0,20) width 92: "2) direction: ltr;"
-        RenderBR {BR} at (92,35) size 0x0
-        RenderBR {BR} at (84,72) size 0x0
+        LayoutBR {BR} at (92,35) size 0x0
+        LayoutBR {BR} at (84,72) size 0x0
       RenderBlock {DIV} at (0,208) size 100x20
         RenderText {#text} at (0,0) size 69x19
           text run at (0,0) width 22: "abc"
           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 (0,228) size 784x76
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
         RenderText {#text} at (0,20) size 68x19
           text run at (0,20) width 68: "3) No style"
-        RenderBR {BR} at (68,35) size 0x0
-        RenderBR {BR} at (84,72) size 0x0
+        LayoutBR {BR} at (68,35) size 0x0
+        LayoutBR {BR} at (84,72) size 0x0
       RenderBlock {DIV} at (0,304) size 100x20
         RenderText {#text} at (0,0) size 69x19
           text run at (0,0) width 22: "abc"
           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 (0,324) size 784x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
 layer at (8,84) size 84x36 clip at (24,85) size 67x34
   RenderListBox {SELECT} at (0,20) size 84x36 [bgcolor=#FFFFFF] [border: (1px solid #A9A9A9)]
     RenderBlock {OPTION} at (16,1) size 67x17