Move and rename RenderBR to LayoutBR.

LayoutTests/platform/mac/tables/mozilla/bugs/bug7112-2-expected.txt

Index: LayoutTests/platform/mac/tables/mozilla/bugs/bug7112-2-expected.txt
diff --git a/LayoutTests/platform/mac/tables/mozilla/bugs/bug7112-2-expected.txt b/LayoutTests/platform/mac/tables/mozilla/bugs/bug7112-2-expected.txt
index 3edf9f9cbc811909a9a7ba875d74ba470663b7de..10397dadf547a3993be5cf20a40538af578c69df 100644
--- a/LayoutTests/platform/mac/tables/mozilla/bugs/bug7112-2-expected.txt
+++ b/LayoutTests/platform/mac/tables/mozilla/bugs/bug7112-2-expected.txt
@@ -57,7 +57,7 @@ layer at (0,0) size 785x1000 backgroundClip at (0,0) size 785x600 clip at (0,0)
                 RenderText {#text} at (98,0) size 24x18
                   text run at (98,0) width 24: "text"
       RenderBlock (anonymous) at (0,414) size 769x18
-        RenderBR {BR} at (0,0) size 0x18
+        LayoutBR {BR} at (0,0) size 0x18
       LayoutTable {TABLE} at (234.50,432) size 300x28 [border: (1px outset #808080)]
         LayoutTableSection {TBODY} at (1,1) size 298x26
           LayoutTableRow {TR} at (0,2) size 298x22
@@ -65,7 +65,7 @@ layer at (0,0) size 785x1000 backgroundClip at (0,0) size 785x600 clip at (0,0)
               RenderText {#text} at (2,2) size 106x18
                 text run at (2,2) width 106: "Data of Table 1!"
       RenderBlock (anonymous) at (0,460) size 769x18
-        RenderBR {BR} at (0,0) size 0x18
+        LayoutBR {BR} at (0,0) size 0x18
       LayoutTable {TABLE} at (0,478) size 300x28 [border: (1px outset #808080)]
         LayoutTableSection {TBODY} at (1,1) size 298x26
           LayoutTableRow {TR} at (0,2) size 298x22
@@ -73,7 +73,7 @@ layer at (0,0) size 785x1000 backgroundClip at (0,0) size 785x600 clip at (0,0)
               RenderText {#text} at (94,2) size 106x18
                 text run at (94,2) width 106: "Data of Table 2!"
       RenderBlock (anonymous) at (0,506) size 769x18
-        RenderBR {BR} at (0,0) size 0x18
+        LayoutBR {BR} at (0,0) size 0x18
       RenderBlock {DIV} at (0,524) size 769x26 [border: (1px solid #000000)]
         LayoutTable {TABLE} at (328.50,1) size 112x24
           LayoutTableSection {TBODY} at (0,0) size 112x24
@@ -82,7 +82,7 @@ layer at (0,0) size 785x1000 backgroundClip at (0,0) size 785x600 clip at (0,0)
                 RenderText {#text} at (1,1) size 106x18
                   text run at (1,1) width 106: "Data of Table 3!"
       RenderBlock (anonymous) at (0,550) size 769x18
-        RenderBR {BR} at (0,0) size 0x18
+        LayoutBR {BR} at (0,0) size 0x18
       RenderBlock {DIV} at (0,568) size 769x26 [border: (1px solid #000000)]
         LayoutTable {TABLE} at (1,1) size 112x24
           LayoutTableSection {TBODY} at (0,0) size 112x24
@@ -91,7 +91,7 @@ layer at (0,0) size 785x1000 backgroundClip at (0,0) size 785x600 clip at (0,0)
                 RenderText {#text} at (1,1) size 106x18
                   text run at (1,1) width 106: "Data of Table 4!"
       RenderBlock (anonymous) at (0,594) size 769x18
-        RenderBR {BR} at (0,0) size 0x18
+        LayoutBR {BR} at (0,0) size 0x18
       LayoutTable {TABLE} at (0,612) size 769x48
         LayoutTableSection {TBODY} at (0,0) size 769x48
           LayoutTableRow {TR} at (0,2) size 769x44