Move and rename RenderBR to LayoutBR.

LayoutTests/platform/linux/tables/mozilla/bugs/bug7112-1-expected.txt

Index: LayoutTests/platform/linux/tables/mozilla/bugs/bug7112-1-expected.txt
diff --git a/LayoutTests/platform/linux/tables/mozilla/bugs/bug7112-1-expected.txt b/LayoutTests/platform/linux/tables/mozilla/bugs/bug7112-1-expected.txt
index dbf48467dff92be173fbf115c8c9fb2f213fd05c..47e35793072053566599bc042104034f3535cfcb 100644
--- a/LayoutTests/platform/linux/tables/mozilla/bugs/bug7112-1-expected.txt
+++ b/LayoutTests/platform/linux/tables/mozilla/bugs/bug7112-1-expected.txt
@@ -57,7 +57,7 @@ layer at (0,0) size 785x974 backgroundClip at (0,0) size 785x600 clip at (0,0) s
                 RenderText {#text} at (99,0) size 22x19
                   text run at (99,0) width 22: "text"
       RenderBlock (anonymous) at (0,372) size 769x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       LayoutTable {TABLE} at (234.50,392) size 300x30 [border: (1px outset #808080)]
         LayoutTableSection {TBODY} at (1,1) size 298x28
           LayoutTableRow {TR} at (0,2) size 298x24
@@ -65,7 +65,7 @@ layer at (0,0) size 785x974 backgroundClip at (0,0) size 785x600 clip at (0,0) s
               RenderText {#text} at (2,2) size 100x19
                 text run at (2,2) width 100: "Data of Table 1!"
       RenderBlock (anonymous) at (0,422) size 769x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       LayoutTable {TABLE} at (0,442) size 300x30 [border: (1px outset #808080)]
         LayoutTableSection {TBODY} at (1,1) size 298x28
           LayoutTableRow {TR} at (0,2) size 298x24
@@ -73,7 +73,7 @@ layer at (0,0) size 785x974 backgroundClip at (0,0) size 785x600 clip at (0,0) s
               RenderText {#text} at (97,2) size 100x19
                 text run at (97,2) width 100: "Data of Table 2!"
       RenderBlock (anonymous) at (0,472) size 769x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       RenderBlock {DIV} at (0,492) size 769x28 [border: (1px solid #000000)]
         LayoutTable {TABLE} at (331.50,1) size 106x26
           LayoutTableSection {TBODY} at (0,0) size 106x26
@@ -82,7 +82,7 @@ layer at (0,0) size 785x974 backgroundClip at (0,0) size 785x600 clip at (0,0) s
                 RenderText {#text} at (1,1) size 100x19
                   text run at (1,1) width 100: "Data of Table 3!"
       RenderBlock (anonymous) at (0,520) size 769x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       RenderBlock {DIV} at (0,540) size 769x28 [border: (1px solid #000000)]
         LayoutTable {TABLE} at (1,1) size 106x26
           LayoutTableSection {TBODY} at (0,0) size 106x26
@@ -91,7 +91,7 @@ layer at (0,0) size 785x974 backgroundClip at (0,0) size 785x600 clip at (0,0) s
                 RenderText {#text} at (1,1) size 100x19
                   text run at (1,1) width 100: "Data of Table 4!"
       RenderBlock (anonymous) at (0,568) size 769x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       LayoutTable {TABLE} at (0,588) size 769x52
         LayoutTableSection {TBODY} at (0,0) size 769x52
           LayoutTableRow {TR} at (0,2) size 769x48