Move and rename RenderBR to LayoutBR.

LayoutTests/platform/win/fast/text/international/unicode-bidi-plaintext-in-textarea-expected.txt

Index: LayoutTests/platform/win/fast/text/international/unicode-bidi-plaintext-in-textarea-expected.txt
diff --git a/LayoutTests/platform/win/fast/text/international/unicode-bidi-plaintext-in-textarea-expected.txt b/LayoutTests/platform/win/fast/text/international/unicode-bidi-plaintext-in-textarea-expected.txt
index 76f73b09574332f0d44a26dbcc57c2e81b7544bb..968d36f2d10bcfbbedd5cde9a734cc60ddfdd243 100644
--- a/LayoutTests/platform/win/fast/text/international/unicode-bidi-plaintext-in-textarea-expected.txt
+++ b/LayoutTests/platform/win/fast/text/international/unicode-bidi-plaintext-in-textarea-expected.txt
@@ -9,47 +9,47 @@ layer at (0,0) size 800x348
             text run at (0,0) width 779: "In all four cases below, the exclamation mark should be on the left side of the first line and on the right side of the second"
             text run at (0,18) width 28: "line."
         RenderBlock {DIV} at (0,36) size 784x296
-          RenderBR {BR} at (421,56) size 0x17
-          RenderBR {BR} at (421,130) size 0x17
-          RenderBR {BR} at (421,204) size 0x17
+          LayoutBR {BR} at (421,56) size 0x17
+          LayoutBR {BR} at (421,130) size 0x17
+          LayoutBR {BR} at (421,204) size 0x17
           RenderText {#text} at (0,0) size 0x0
 layer at (8,44) size 421x70 clip at (9,45) size 419x68
   LayoutTextControl {TEXTAREA} at (0,0) size 421x70 [bgcolor=#FFFFFF] [border: (1px solid #A9A9A9)]
     RenderBlock {DIV} at (3,3) size 415x48
       RenderText {#text} at (375,0) size 40x16
         text run at (375,0) width 40 RTL: "\x{5E9}\x{5DC}\x{5D5}\x{5DD}!"
-      RenderBR {BR} at (375,0) size 0x16
+      LayoutBR {BR} at (375,0) size 0x16
       RenderText {#text} at (0,16) size 48x16
         text run at (0,16) width 48: "hello!"
-      RenderBR {BR} at (48,16) size 0x16
-      RenderBR {BR} at (0,32) size 0x16
+      LayoutBR {BR} at (48,16) size 0x16
+      LayoutBR {BR} at (0,32) size 0x16
 layer at (8,118) size 421x70 clip at (9,119) size 419x68
   LayoutTextControl {TEXTAREA} at (0,74) size 421x70 [bgcolor=#FFFFFF] [border: (1px solid #A9A9A9)]
     RenderBlock {DIV} at (3,3) size 415x48
       RenderText {#text} at (375,0) size 40x16
         text run at (375,0) width 40 RTL: "\x{5E9}\x{5DC}\x{5D5}\x{5DD}!"
-      RenderBR {BR} at (375,0) size 0x16
+      LayoutBR {BR} at (375,0) size 0x16
       RenderText {#text} at (0,16) size 48x16
         text run at (0,16) width 48: "hello!"
-      RenderBR {BR} at (48,16) size 0x16
-      RenderBR {BR} at (0,32) size 0x16
+      LayoutBR {BR} at (48,16) size 0x16
+      LayoutBR {BR} at (0,32) size 0x16
 layer at (8,192) size 421x70 clip at (9,193) size 419x68
   LayoutTextControl {TEXTAREA} at (0,148) size 421x70 [bgcolor=#FFFFFF] [border: (1px solid #A9A9A9)]
     RenderBlock {DIV} at (3,3) size 415x48
       RenderText {#text} at (375,0) size 40x16
         text run at (375,0) width 40 RTL: "\x{5E9}\x{5DC}\x{5D5}\x{5DD}!"
-      RenderBR {BR} at (375,0) size 0x16
+      LayoutBR {BR} at (375,0) size 0x16
       RenderText {#text} at (0,16) size 48x16
         text run at (0,16) width 48: "hello!"
-      RenderBR {BR} at (48,16) size 0x16
-      RenderBR {BR} at (0,32) size 0x16
+      LayoutBR {BR} at (48,16) size 0x16
+      LayoutBR {BR} at (0,32) size 0x16
 layer at (8,266) size 421x70 clip at (9,267) size 419x68
   LayoutTextControl {TEXTAREA} at (0,222) size 421x70 [bgcolor=#FFFFFF] [border: (1px solid #A9A9A9)]
     RenderBlock {DIV} at (3,3) size 415x48
       RenderText {#text} at (375,0) size 40x16
         text run at (375,0) width 40 RTL: "\x{5E9}\x{5DC}\x{5D5}\x{5DD}!"
-      RenderBR {BR} at (375,0) size 0x16
+      LayoutBR {BR} at (375,0) size 0x16
       RenderText {#text} at (0,16) size 48x16
         text run at (0,16) width 48: "hello!"
-      RenderBR {BR} at (48,16) size 0x16
-      RenderBR {BR} at (0,32) size 0x16
+      LayoutBR {BR} at (48,16) size 0x16
+      LayoutBR {BR} at (0,32) size 0x16