Move and rename RenderBR to LayoutBR.

LayoutTests/platform/linux/tables/mozilla/core/col_widths_auto_fix-expected.txt

Index: LayoutTests/platform/linux/tables/mozilla/core/col_widths_auto_fix-expected.txt
diff --git a/LayoutTests/platform/linux/tables/mozilla/core/col_widths_auto_fix-expected.txt b/LayoutTests/platform/linux/tables/mozilla/core/col_widths_auto_fix-expected.txt
index 02b689ccae5a996b074d376ab663d6d1803c1ed6..a69f498b61915760a82c26b5ea358e6aee47daff 100644
--- a/LayoutTests/platform/linux/tables/mozilla/core/col_widths_auto_fix-expected.txt
+++ b/LayoutTests/platform/linux/tables/mozilla/core/col_widths_auto_fix-expected.txt
@@ -13,7 +13,7 @@ layer at (0,0) size 800x784 backgroundClip at (0,0) size 800x600 clip at (0,0) s
               RenderText {#text} at (2,2) size 59x19
                 text run at (2,2) width 59: "one_hund"
       RenderBlock (anonymous) at (0,30) size 784x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       LayoutTable {TABLE} at (0,50) size 500x30 [border: (1px outset #808080)]
         LayoutTableSection {TBODY} at (1,1) size 498x28
           LayoutTableRow {TR} at (0,2) size 498x24
@@ -27,7 +27,7 @@ layer at (0,0) size 800x784 backgroundClip at (0,0) size 800x600 clip at (0,0) s
               RenderText {#text} at (2,2) size 92x19
                 text run at (2,2) width 92: "foo foo foo foo"
       RenderBlock (anonymous) at (0,80) size 784x40
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
         RenderText {#text} at (0,20) size 348x19
           text run at (0,20) width 348: "fixed table - fixed cells are increased based on fixed width"
       LayoutTable {TABLE} at (0,120) size 400x50 [border: (1px outset #808080)]
@@ -41,8 +41,8 @@ layer at (0,0) size 800x784 backgroundClip at (0,0) size 800x600 clip at (0,0) s
                 text run at (2,2) width 116: "foo foo foo foo foo"
                 text run at (2,22) width 68: "foo foo foo"
       RenderBlock (anonymous) at (0,170) size 784x60
-        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
         RenderText {#text} at (0,40) size 357x19
           text run at (0,40) width 357: "excess above min allocated based on fixed widths (not min)"
       LayoutTable {TABLE} at (0,230) size 100x50 [border: (1px outset #808080)]
@@ -56,7 +56,7 @@ layer at (0,0) size 800x784 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: "foo"
       RenderBlock (anonymous) at (0,280) size 784x40
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
         RenderText {#text} at (0,20) size 357x19
           text run at (0,20) width 357: "excess above min allocated based on fixed widths (not min)"
       LayoutTable {TABLE} at (0,320) size 100x50 [border: (1px outset #808080)]
@@ -70,7 +70,7 @@ layer at (0,0) size 800x784 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: "foo"
       RenderBlock (anonymous) at (0,370) size 784x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       LayoutTable {TABLE} at (0,390) size 600x30 [border: (1px outset #808080)]
         LayoutTableSection {TBODY} at (1,1) size 598x28
           LayoutTableRow {TR} at (0,2) size 598x24
@@ -81,7 +81,7 @@ layer at (0,0) size 800x784 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: "foo"
       RenderBlock (anonymous) at (0,420) size 784x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       LayoutTable {TABLE} at (0,440) size 40x30 [border: (1px outset #808080)]
         LayoutTableSection {TBODY} at (1,1) size 38x28
           LayoutTableRow {TR} at (0,2) size 38x24
@@ -89,7 +89,7 @@ layer at (0,0) size 800x784 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: "foo"
       RenderBlock (anonymous) at (0,470) size 784x40
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
         RenderText {#text} at (0,20) size 323x19
           text run at (0,20) width 323: "auto table - fixed width cell does not exceed viewport"
       LayoutTable {TABLE} at (0,510) size 784x30 [border: (1px outset #808080)]
@@ -99,7 +99,7 @@ layer at (0,0) size 800x784 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: "foo"
       RenderBlock (anonymous) at (0,540) size 784x40
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
         RenderText {#text} at (0,20) size 280x19
           text run at (0,20) width 280: "auto table - fixed cells cannot exceed viewport"
       LayoutTable {TABLE} at (0,580) size 784x30 [border: (1px outset #808080)]
@@ -121,7 +121,7 @@ layer at (0,0) size 800x784 backgroundClip at (0,0) size 800x600 clip at (0,0) s
               RenderText {#text} at (2,2) size 39x19
                 text run at (2,2) width 39: "200px"
       RenderBlock (anonymous) at (0,610) size 784x40
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
         RenderText {#text} at (0,20) size 284x19
           text run at (0,20) width 284: "auto table - cell width does not include padding"
       LayoutTable {TABLE} at (0,650) size 148x68 [border: (1px outset #808080)]
@@ -131,7 +131,7 @@ layer at (0,0) size 800x784 backgroundClip at (0,0) size 800x600 clip at (0,0) s
               RenderText {#text} at (21,21) size 68x19
                 text run at (21,21) width 68: "cell=100px"
       RenderBlock (anonymous) at (0,718) size 784x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       LayoutTable {TABLE} at (0,738) size 110x30 [border: (1px outset #808080)]
         LayoutTableSection {TBODY} at (1,1) size 108x28
           LayoutTableRow {TR} at (0,2) size 108x24