Move and rename RenderBR to LayoutBR.

LayoutTests/platform/win/tables/mozilla/bugs/bug8858-expected.txt

Index: LayoutTests/platform/win/tables/mozilla/bugs/bug8858-expected.txt
diff --git a/LayoutTests/platform/win/tables/mozilla/bugs/bug8858-expected.txt b/LayoutTests/platform/win/tables/mozilla/bugs/bug8858-expected.txt
index 557422af81146905fc05f01b72652a05088092a3..68e0a45f319918c146c56eaa214a449420c11d82 100644
--- a/LayoutTests/platform/win/tables/mozilla/bugs/bug8858-expected.txt
+++ b/LayoutTests/platform/win/tables/mozilla/bugs/bug8858-expected.txt
@@ -7,7 +7,7 @@ layer at (0,0) size 800x600
         RenderText {#text} at (0,0) size 512x17
           text run at (0,0) width 432: "there's a table below this line with cellspacing=1 and border=2 and "
           text run at (431,0) width 81: "several lines"
-        RenderBR {BR} at (511,14) size 1x0
+        LayoutBR {BR} at (511,14) size 1x0
         RenderText {#text} at (0,18) size 419x17
           text run at (0,18) width 419: "of content beginning 'Pacific Shore Properties ...'. Can you see it?"
       LayoutTable {TABLE} at (0,52) size 776x529 [border: (2px outset #808080)]
@@ -22,7 +22,7 @@ layer at (0,0) size 800x600
                   RenderInline {FONT} at (0,0) size 235x17 [color=#E91C05]
                     RenderText {#text} at (22,7) size 235x17
                       text run at (22,7) width 235: "elcome to Pacific Shore Properties"
-                    RenderBR {BR} at (256,21) size 1x0
+                    LayoutBR {BR} at (256,21) size 1x0
                 RenderInline {FONT} at (0,0) size 359x16
                   RenderText {#text} at (0,27) size 359x16
                     text run at (0,27) width 359: "Pacific Shore Properties is situated on beautiful Mayne Island."
@@ -31,7 +31,7 @@ layer at (0,0) size 800x600
                   RenderText {#text} at (0,0) size 731x32
                     text run at (0,0) width 731: "Mayne Island is one of the southern Gulf Islands, off the coast of British Columbia, Canada, between Vancouver and Vancouver"
                     text run at (0,16) width 38: "Island."
-                  RenderBR {BR} at (38,29) size 0x0
+                  LayoutBR {BR} at (38,29) size 0x0
                   RenderText {#text} at (0,32) size 85x16
                     text run at (0,32) width 85: "(See map: left)"
               RenderBlock {P} at (5,128) size 760x80
@@ -39,8 +39,8 @@ layer at (0,0) size 800x600
                   RenderText {#text} at (0,0) size 743x32
                     text run at (0,0) width 743: "Pacific Shore Properties specializes in the diverse properties of the Southern Gulf Islands; which include Beach, Business, View,"
                     text run at (0,16) width 256: "Acreage, Home, Retirement and Recreation."
-                  RenderBR {BR} at (256,29) size 0x0
-                  RenderBR {BR} at (0,32) size 0x16
+                  LayoutBR {BR} at (256,29) size 0x0
+                  LayoutBR {BR} at (0,32) size 0x16
                   RenderText {#text} at (0,48) size 714x32
                     text run at (0,48) width 714: "In business for over 35 years, and the oldest real estate company on Mayne Island, Pacific Shore Properties knowledge and"
                     text run at (0,64) width 251: "expertise on the Gulf Islands is unmatched."