Move and rename RenderBR to LayoutBR.

LayoutTests/platform/linux/fast/table/009-expected.txt

Index: LayoutTests/platform/linux/fast/table/009-expected.txt
diff --git a/LayoutTests/platform/linux/fast/table/009-expected.txt b/LayoutTests/platform/linux/fast/table/009-expected.txt
index 96f1dec4d0bab8cdc223bd2d3715a84be887f69b..5d4100a6397daef9e14913d7e8ca35414be983b8 100644
--- a/LayoutTests/platform/linux/fast/table/009-expected.txt
+++ b/LayoutTests/platform/linux/fast/table/009-expected.txt
@@ -25,18 +25,18 @@ layer at (0,0) size 800x600
           text run at (2,22) width 30: "text. "
           text run at (32,22) width 48: "I should"
           text run at (2,42) width 57: "overflow."
-        RenderBR {BR} at (59,57) size 0x0
+        LayoutBR {BR} at (59,57) size 0x0
         RenderText {#text} at (2,62) size 90x19
           text run at (2,62) width 90: "I will overflow."
-        RenderBR {BR} at (92,77) size 0x0
+        LayoutBR {BR} at (92,77) size 0x0
         RenderText {#text} at (2,82) size 86x39
           text run at (2,82) width 86: "I definitely will"
           text run at (2,102) width 53: "overflow"
-        RenderBR {BR} at (55,117) size 0x0
+        LayoutBR {BR} at (55,117) size 0x0
         RenderText {#text} at (2,122) size 63x39
           text run at (2,122) width 63: "I promis. I"
           text run at (2,142) width 60: "lvoerflow."
-        RenderBR {BR} at (62,157) size 0x0
+        LayoutBR {BR} at (62,157) size 0x0
         RenderText {#text} at (2,162) size 41x19
           text run at (2,162) width 41: "Really."
       RenderBlock {P} at (0,74) size 800x0