Move and rename RenderBR to LayoutBR.

LayoutTests/platform/win-xp/tables/mozilla/core/col_span-expected.txt

Index: LayoutTests/platform/win-xp/tables/mozilla/core/col_span-expected.txt
diff --git a/LayoutTests/platform/win-xp/tables/mozilla/core/col_span-expected.txt b/LayoutTests/platform/win-xp/tables/mozilla/core/col_span-expected.txt
index ad5cffb21ed12fc822251b5c6aef7d7c9b218b58..d1b6dcc96161cc67d7892aed74acff43e324e880 100644
--- a/LayoutTests/platform/win-xp/tables/mozilla/core/col_span-expected.txt
+++ b/LayoutTests/platform/win-xp/tables/mozilla/core/col_span-expected.txt
@@ -14,7 +14,7 @@ layer at (0,0) size 800x640 backgroundClip at (0,0) size 800x600 clip at (0,0) s
                 text run at (2,2) width 29: "30%"
                 text run at (2,22) width 33: "width"
       RenderBlock (anonymous) at (0,50) size 784x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       LayoutTable {TABLE} at (0,70) size 216x50 [border: (1px outset #808080)]
         LayoutTableSection {TBODY} at (1,1) size 214x48
           LayoutTableRow {TR} at (0,2) size 214x44
@@ -26,7 +26,7 @@ layer at (0,0) size 800x640 backgroundClip at (0,0) size 800x600 clip at (0,0) s
               RenderText {#text} at (2,2) size 66x19
                 text run at (2,2) width 66: "50% width"
       RenderBlock (anonymous) at (0,120) size 784x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       LayoutTable {TABLE} at (0,140) size 534x56 [border: (1px outset #808080)]
         LayoutTableSection {TBODY} at (1,1) size 532x54
           LayoutTableRow {TR} at (0,2) size 532x24
@@ -44,7 +44,7 @@ layer at (0,0) size 800x640 backgroundClip at (0,0) size 800x600 clip at (0,0) s
               RenderText {#text} at (2,2) size 91x19
                 text run at (2,2) width 91: "500 colspan=3"
       RenderBlock (anonymous) at (0,196) size 784x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       LayoutTable {TABLE} at (0,216) size 450x82 [border: (1px outset #808080)]
         LayoutTableSection {TBODY} at (1,1) size 448x80
           LayoutTableRow {TR} at (0,2) size 448x24
@@ -72,7 +72,7 @@ layer at (0,0) size 800x640 backgroundClip at (0,0) size 800x600 clip at (0,0) s
               RenderText {#text} at (2,2) size 110x19
                 text run at (2,2) width 110: "300 spans col 2-3"
       RenderBlock (anonymous) at (0,298) size 784x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       LayoutTable {TABLE} at (0,318) size 700x70 [border: (1px outset #808080)]
         LayoutTableSection {TBODY} at (1,1) size 698x68
           LayoutTableRow {TR} at (0,2) size 698x64
@@ -85,7 +85,7 @@ layer at (0,0) size 800x640 backgroundClip at (0,0) size 800x600 clip at (0,0) s
               RenderText {#text} at (2,2) size 20x19
                 text run at (2,2) width 20: "bar"
       RenderBlock (anonymous) at (0,388) size 784x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       LayoutTable {TABLE} at (0,408) size 400x98 [border: (1px outset #808080)]
         LayoutTableSection {TBODY} at (1,1) size 398x96
           LayoutTableRow {TR} at (0,0) size 398x48
@@ -110,8 +110,8 @@ layer at (0,0) size 800x640 backgroundClip at (0,0) size 800x600 clip at (0,0) s
                   text run at (264,0) width 112: "blah blah blah blah"
                   text run at (0,20) width 170: "blah blah blah blah blah blah"
       RenderBlock (anonymous) at (0,506) size 784x40
-        RenderBR {BR} at (0,0) size 0x19
-        RenderBR {BR} at (0,20) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,20) size 0x19
       LayoutTable {TABLE} at (0,546) size 400x78 [border: (1px outset #808080)]
         LayoutTableSection {TBODY} at (1,1) size 398x76
           LayoutTableRow {TR} at (0,0) size 398x28