Move and rename RenderBR to LayoutBR.

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

Index: LayoutTests/platform/linux/fast/text/international/unicode-bidi-plaintext-in-textarea-expected.txt
diff --git a/LayoutTests/platform/linux/fast/text/international/unicode-bidi-plaintext-in-textarea-expected.txt b/LayoutTests/platform/linux/fast/text/international/unicode-bidi-plaintext-in-textarea-expected.txt
index cc7ad355a718e6a185319bfb407518b4241f6d20..02fee363abfef9d29e2e9d079d19446bdcb3a3cb 100644
--- a/LayoutTests/platform/linux/fast/text/international/unicode-bidi-plaintext-in-textarea-expected.txt
+++ b/LayoutTests/platform/linux/fast/text/international/unicode-bidi-plaintext-in-textarea-expected.txt
@@ -8,47 +8,47 @@ layer at (0,0) size 800x336
           RenderText {#text} at (0,0) size 750x19
             text run at (0,0) width 750: "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 line."
         RenderBlock {DIV} at (0,20) size 784x300
-          RenderBR {BR} at (421,55) size 0x19
-          RenderBR {BR} at (421,130) size 0x19
-          RenderBR {BR} at (421,205) size 0x19
+          LayoutBR {BR} at (421,55) size 0x19
+          LayoutBR {BR} at (421,130) size 0x19
+          LayoutBR {BR} at (421,205) size 0x19
           RenderText {#text} at (0,0) size 0x0
 layer at (8,28) size 421x70 clip at (9,29) 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 (8,103) size 421x70 clip at (9,104) size 419x68
   LayoutTextControl {TEXTAREA} at (0,75) 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 (8,178) size 421x70 clip at (9,179) size 419x68
   LayoutTextControl {TEXTAREA} at (0,150) 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 (8,253) size 421x70 clip at (9,254) size 419x68
   LayoutTextControl {TEXTAREA} at (0,225) 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