Move and rename RenderBR to LayoutBR.

LayoutTests/platform/linux/tables/mozilla/bugs/bug965-expected.txt

Index: LayoutTests/platform/linux/tables/mozilla/bugs/bug965-expected.txt
diff --git a/LayoutTests/platform/linux/tables/mozilla/bugs/bug965-expected.txt b/LayoutTests/platform/linux/tables/mozilla/bugs/bug965-expected.txt
index 01ebe1976ee42c9b09a12df51bd0d3e2e2e3dded..1908a46a8394d6cbd1feaca1e650e2c35d89b04f 100644
--- a/LayoutTests/platform/linux/tables/mozilla/bugs/bug965-expected.txt
+++ b/LayoutTests/platform/linux/tables/mozilla/bugs/bug965-expected.txt
@@ -26,7 +26,7 @@ layer at (0,0) size 800x600
               RenderText {#text} at (2,2) size 16x19
                 text run at (2,2) width 16: "six"
       RenderBlock (anonymous) at (0,56) size 784x20
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
       LayoutTable {TABLE} at (0,76) size 99x56 [border: (1px solid #FF0000)]
         LayoutTableSection {TBODY} at (1,1) size 97x54
           LayoutTableRow {TR} at (0,2) size 97x24
@@ -50,7 +50,7 @@ layer at (0,0) size 800x600
               RenderText {#text} at (2,2) size 16x19
                 text run at (2,2) width 16: "six"
       RenderBlock (anonymous) at (0,132) size 784x40
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
         RenderText {#text} at (0,20) size 220x19
           text run at (0,20) width 220: "should be 2px solid red around table"
       LayoutTable {TABLE} at (0,172) size 72x32 [border: (2px solid #FF0000)]
@@ -63,7 +63,7 @@ layer at (0,0) size 800x600
               RenderText {#text} at (2,2) size 28x19
                 text run at (2,2) width 28: "Two"
       RenderBlock (anonymous) at (0,204) size 784x40
-        RenderBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,0) size 0x19
         RenderText {#text} at (0,20) size 244x19
           text run at (0,20) width 244: "should be medium solid red around table"
       LayoutTable {TABLE} at (0,244) size 74x34 [border: (3px solid #FF0000)]