Move and rename RenderBR to LayoutBR.

LayoutTests/platform/win/fast/forms/textAreaLineHeight-expected.txt

Index: LayoutTests/platform/win/fast/forms/textAreaLineHeight-expected.txt
diff --git a/LayoutTests/platform/win/fast/forms/textAreaLineHeight-expected.txt b/LayoutTests/platform/win/fast/forms/textAreaLineHeight-expected.txt
index 494762fbec1866a613f43433f0b3e49ba5575553..9792af829a163ab7faac6eb0e41bb2cc9ad84bd3 100644
--- a/LayoutTests/platform/win/fast/forms/textAreaLineHeight-expected.txt
+++ b/LayoutTests/platform/win/fast/forms/textAreaLineHeight-expected.txt
@@ -6,15 +6,15 @@ layer at (0,0) size 785x1211 backgroundClip at (0,0) size 785x600 clip at (0,0)
       RenderBlock (anonymous) at (0,0) size 769x18
         RenderText {#text} at (0,0) size 278x17
           text run at (0,0) width 278: "line-height settings not reflected in textarea"
-        RenderBR {BR} at (277,0) size 1x17
+        LayoutBR {BR} at (277,0) size 1x17
       RenderBlock {P} at (0,34) size 769x264
         RenderText {#text} at (0,0) size 85x17
           text run at (0,0) width 85: "TEXTAREA"
-        RenderBR {BR} at (84,0) size 1x17
+        LayoutBR {BR} at (84,0) size 1x17
         RenderText {#text} at (406,210) size 4x17
           text run at (406,210) width 4: " "
-        RenderBR {BR} at (0,0) size 0x0
-        RenderBR {BR} at (0,228) size 0x17
+        LayoutBR {BR} at (0,0) size 0x0
+        LayoutBR {BR} at (0,228) size 0x17
         RenderText {#text} at (0,246) size 150x17
           text run at (0,246) width 150: "PARAGRAPH - works"
       RenderBlock {P} at (0,314) size 402x202 [border: (1px dotted #C0C0C0)]
@@ -22,34 +22,34 @@ layer at (0,0) size 785x1211 backgroundClip at (0,0) size 785x600 clip at (0,0)
           text run at (1,19) width 385: "Demo text here that wraps a bit and should demonstrate"
           text run at (1,72) width 181: "the goodness of line-height"
       RenderBlock (anonymous) at (0,529.33) size 769x36
-        RenderBR {BR} at (0,0) size 0x17
+        LayoutBR {BR} at (0,0) size 0x17
         RenderText {#text} at (0,18) size 81x17
           text run at (0,18) width 81: "DIV - works"
-        RenderBR {BR} at (80,18) size 1x17
+        LayoutBR {BR} at (80,18) size 1x17
       RenderBlock {DIV} at (0,565.33) size 402x202 [border: (1px dotted #C0C0C0)]
         RenderText {#text} at (1,19) size 385x69
           text run at (1,19) width 385: "Demo text here that wraps a bit and should demonstrate"
           text run at (1,72) width 181: "the goodness of line-height"
       RenderBlock (anonymous) at (0,767.33) size 769x420
-        RenderBR {BR} at (0,0) size 0x17
-        RenderBR {BR} at (0,18) size 0x17
+        LayoutBR {BR} at (0,0) size 0x17
+        LayoutBR {BR} at (0,18) size 0x17
         RenderText {#text} at (0,36) size 126x17
           text run at (0,36) width 126: "Un-Styled Textarea"
-        RenderBR {BR} at (125,36) size 1x17
+        LayoutBR {BR} at (125,36) size 1x17
         RenderText {#text} at (181,78) size 4x17
           text run at (181,78) width 4: " "
-        RenderBR {BR} at (0,0) size 0x0
-        RenderBR {BR} at (0,96) size 0x17
+        LayoutBR {BR} at (0,0) size 0x0
+        LayoutBR {BR} at (0,96) size 0x17
         RenderText {#text} at (0,114) size 219x17
           text run at (0,114) width 219: "Totally Blank Un-Styled Textarea"
-        RenderBR {BR} at (218,114) size 1x17
+        LayoutBR {BR} at (218,114) size 1x17
         RenderText {#text} at (181,156) size 4x17
           text run at (181,156) width 4: " "
-        RenderBR {BR} at (0,0) size 0x0
-        RenderBR {BR} at (0,174) size 0x17
+        LayoutBR {BR} at (0,0) size 0x0
+        LayoutBR {BR} at (0,174) size 0x17
         RenderText {#text} at (0,192) size 214x17
           text run at (0,192) width 214: "Totally Blank STYLED Textarea"
-        RenderBR {BR} at (213,192) size 1x17
+        LayoutBR {BR} at (213,192) size 1x17
         RenderText {#text} at (0,0) size 0x0
       RenderBlock {P} at (0,1203.33) size 769x0
 layer at (8,60) size 406x206 clip at (9,61) size 404x204