Move and rename RenderBR to LayoutBR.

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

Index: LayoutTests/platform/linux/fast/css/text-overflow-ellipsis-text-align-left-expected.txt
diff --git a/LayoutTests/platform/linux/fast/css/text-overflow-ellipsis-text-align-left-expected.txt b/LayoutTests/platform/linux/fast/css/text-overflow-ellipsis-text-align-left-expected.txt
index 17441b44ba0e611e726dd12d62db04064cc6c00e..79b5425131438397705bc1729c531f92d9fda14b 100644
--- a/LayoutTests/platform/linux/fast/css/text-overflow-ellipsis-text-align-left-expected.txt
+++ b/LayoutTests/platform/linux/fast/css/text-overflow-ellipsis-text-align-left-expected.txt
@@ -41,16 +41,16 @@ layer at (8,208) size 310x82 clip at (9,209) size 308x80 scrollWidth 683
   RenderBlock {DIV} at (0,200.16) size 310x82 [border: (1px solid #000000)]
     RenderText {#text} at (1,1) size 683x19
       text run at (1,1) width 683: "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 (1,21) size 674x19
       text run at (1,21) width 674: "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 (1,41) size 666x19
       text run at (1,41) width 666: "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 (1,61) size 661x19
       text run at (1,61) width 661: "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 (8,352) size 310x32 clip at (9,353) size 308x30 scrollWidth 712
   RenderBlock {DIV} at (0,343.88) size 310x32 [border: (1px solid #000000)]
     RenderText {#text} at (1,11) size 173x19
@@ -73,16 +73,16 @@ layer at (8,623) size 310x82 backgroundClip at (0,0) size 0x0 clip at (0,0) size
   RenderBlock {DIV} at (0,615.03) size 310x82 [border: (1px solid #000000)]
     RenderText {#text} at (-375,1) size 683x19
       text run at (-375,1) width 683 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 (-368,21) size 674x19
       text run at (-368,21) width 674 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 (-361,41) size 666x19
       text run at (-361,41) width 666 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 (-357,61) size 661x19
       text run at (-357,61) width 661 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 (8,767) size 310x32 backgroundClip at (0,0) size 0x0 clip at (0,0) size 0x0 outlineClip at (0,0) size 785x600 scrollX 406.00 scrollWidth 714
   RenderBlock {DIV} at (0,758.75) size 310x32 [border: (1px solid #000000)]
     RenderText {#text} at (134,11) size 173x19