Move and rename RenderBR to LayoutBR.

LayoutTests/platform/win/tables/mozilla/bugs/bug5538-expected.txt

Index: LayoutTests/platform/win/tables/mozilla/bugs/bug5538-expected.txt
diff --git a/LayoutTests/platform/win/tables/mozilla/bugs/bug5538-expected.txt b/LayoutTests/platform/win/tables/mozilla/bugs/bug5538-expected.txt
index f3ca99acbadbd0a808913fea7116c55237cc6235..b576834bb445bc8efe5b787d7eb1ca863bb66585 100644
--- a/LayoutTests/platform/win/tables/mozilla/bugs/bug5538-expected.txt
+++ b/LayoutTests/platform/win/tables/mozilla/bugs/bug5538-expected.txt
@@ -28,11 +28,11 @@ layer at (0,0) size 800x600
         RenderBlock (anonymous) at (0,0) size 784x54
           RenderText {#text} at (0,0) size 476x17
             text run at (0,0) width 476: "When removing <A HREF=\"...\"> surrounding logo image in first row and"
-          RenderBR {BR} at (475,14) size 1x0
+          LayoutBR {BR} at (475,14) size 1x0
           RenderText {#text} at (0,18) size 390x17
             text run at (0,18) width 390: "removing <MAP> element in second row it looks OK to me:"
-          RenderBR {BR} at (389,32) size 1x0
-          RenderBR {BR} at (0,36) size 0x17
+          LayoutBR {BR} at (389,32) size 1x0
+          LayoutBR {BR} at (0,36) size 0x17
         LayoutTable {TABLE} at (0,54) size 600x89
           LayoutTableSection {TBODY} at (0,0) size 600x89
             LayoutTableRow {TR} at (0,0) size 600x89