Move and rename RenderBR to LayoutBR.

LayoutTests/platform/linux/fast/css/vertical-text-overflow-ellipsis-text-align-justify-expected.txt

Index: LayoutTests/platform/linux/fast/css/vertical-text-overflow-ellipsis-text-align-justify-expected.txt
diff --git a/LayoutTests/platform/linux/fast/css/vertical-text-overflow-ellipsis-text-align-justify-expected.txt b/LayoutTests/platform/linux/fast/css/vertical-text-overflow-ellipsis-text-align-justify-expected.txt
index 559715277dc564ff767a44c9c699189283dc9caf..28b6e85f03d234770dc4ca6c522f8e29f20061ea 100644
--- a/LayoutTests/platform/linux/fast/css/vertical-text-overflow-ellipsis-text-align-justify-expected.txt
+++ b/LayoutTests/platform/linux/fast/css/vertical-text-overflow-ellipsis-text-align-justify-expected.txt
@@ -35,16 +35,16 @@ layer at (8,421) size 82x310 backgroundClip at (8,421) size 82x179 clip at (9,42
   RenderBlock {DIV} at (0,413.44) size 82x310 [border: (1px solid #000000)]
     RenderText {#text} at (1,1) size 19x682
       text run at (1,1) width 682: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus vitae eros non libero faucibus sagittis sed ut eros."
-    RenderBR {BR} at (0,0) size 0x0
+    LayoutBR {BR} at (0,0) size 0x0
     RenderText {#text} at (21,1) size 19x673
       text run at (21,1) width 673: "orem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus vitae eros non libero faucibus sagittis sed ut eros."
-    RenderBR {BR} at (0,0) size 0x0
+    LayoutBR {BR} at (0,0) size 0x0
     RenderText {#text} at (41,1) size 19x665
       text run at (41,1) width 665: "rem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus vitae eros non libero faucibus sagittis sed ut eros."
-    RenderBR {BR} at (0,0) size 0x0
+    LayoutBR {BR} at (0,0) size 0x0
     RenderText {#text} at (61,1) size 19x660
       text run at (61,1) width 660: "em ipsum dolor sit amet, consectetur adipiscing elit. Vivamus vitae eros non libero faucibus sagittis sed ut eros."
-    RenderBR {BR} at (0,0) size 0x0
+    LayoutBR {BR} at (0,0) size 0x0
 layer at (8,793) size 32x310 backgroundClip at (0,0) size 0x0 clip at (0,0) size 0x0 outlineClip at (0,0) size 785x600 scrollHeight 710
   RenderBlock {DIV} at (0,785.16) size 32x310 [border: (1px solid #000000)]
     RenderText {#text} at (11,1) size 19x173
@@ -67,16 +67,16 @@ layer at (8,1908) size 82x310 backgroundClip at (0,0) size 0x0 clip at (0,0) siz
   RenderBlock {DIV} at (0,1900.31) size 82x310 [border: (1px solid #000000)]
     RenderText {#text} at (1,1) size 19x682
       text run at (1,1) width 682 RTL override: "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus vitae eros non libero faucibus sagittis sed ut eros."
-    RenderBR {BR} at (0,0) size 0x0
+    LayoutBR {BR} at (0,0) size 0x0
     RenderText {#text} at (21,1) size 19x673
       text run at (21,1) width 673 RTL override: "orem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus vitae eros non libero faucibus sagittis sed ut eros."
-    RenderBR {BR} at (0,0) size 0x0
+    LayoutBR {BR} at (0,0) size 0x0
     RenderText {#text} at (41,1) size 19x665
       text run at (41,1) width 665 RTL override: "rem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus vitae eros non libero faucibus sagittis sed ut eros."
-    RenderBR {BR} at (0,0) size 0x0
+    LayoutBR {BR} at (0,0) size 0x0
     RenderText {#text} at (61,1) size 19x660
       text run at (61,1) width 660 RTL override: "em ipsum dolor sit amet, consectetur adipiscing elit. Vivamus vitae eros non libero faucibus sagittis sed ut eros."
-    RenderBR {BR} at (0,0) size 0x0
+    LayoutBR {BR} at (0,0) size 0x0
 layer at (8,2280) size 32x310 backgroundClip at (0,0) size 0x0 clip at (0,0) size 0x0 outlineClip at (0,0) size 785x600 scrollY 402.00 scrollHeight 710
   RenderBlock {DIV} at (0,2272.03) size 32x310 [border: (1px solid #000000)]
     RenderText {#text} at (11,136) size 19x173