Move and rename RenderBR to LayoutBR.

LayoutTests/platform/win/tables/mozilla/bugs/bug25663-expected.txt

Index: LayoutTests/platform/win/tables/mozilla/bugs/bug25663-expected.txt
diff --git a/LayoutTests/platform/win/tables/mozilla/bugs/bug25663-expected.txt b/LayoutTests/platform/win/tables/mozilla/bugs/bug25663-expected.txt
index f4ca92cd379e6d84595a80e524266c946ab5fab8..83d5563b3ff68b0889dc885bc4b4a6ea0baac8b2 100644
--- a/LayoutTests/platform/win/tables/mozilla/bugs/bug25663-expected.txt
+++ b/LayoutTests/platform/win/tables/mozilla/bugs/bug25663-expected.txt
@@ -14,7 +14,7 @@ layer at (0,0) size 800x600
                     LayoutTableCell {TD} at (6,2) size 467x56 [r=0 c=1 rs=1 cs=1]
                       RenderText {#text} at (1,1) size 223x17
                         text run at (1,1) width 223: "Welcome to the new DaveCentral!"
-                      RenderBR {BR} at (223,15) size 1x0
+                      LayoutBR {BR} at (223,15) size 1x0
                       RenderText {#text} at (1,19) size 440x35
                         text run at (1,19) width 86: "I have a new "
                         text run at (86,19) width 355: "Linux software archive as well as the Windows archive"
@@ -22,10 +22,10 @@ layer at (0,0) size 800x600
             LayoutTableCell {TD} at (483,2) size 123x94 [bgcolor=#99CCCC] [border: (1px inset #808080)] [r=0 c=1 rs=1 cs=1]
               RenderText {#text} at (2,2) size 114x17
                 text run at (2,2) width 114: "ANDOVER.NET"
-              RenderBR {BR} at (115,16) size 1x0
+              LayoutBR {BR} at (115,16) size 1x0
               RenderText {#text} at (2,20) size 107x17
                 text run at (2,20) width 107: "E-COMMERCE"
-              RenderBR {BR} at (108,34) size 1x0
+              LayoutBR {BR} at (108,34) size 1x0
               RenderText {#text} at (2,38) size 104x53
                 text run at (2,38) width 104: "Buy some smart"
                 text run at (2,56) width 65: "stuff from"