Move and rename RenderBR to LayoutBR.

LayoutTests/platform/mac/virtual/slimmingpaint/fast/text/international/bidi-menulist-expected.txt

Index: LayoutTests/platform/mac/virtual/slimmingpaint/fast/text/international/bidi-menulist-expected.txt
diff --git a/LayoutTests/platform/mac/virtual/slimmingpaint/fast/text/international/bidi-menulist-expected.txt b/LayoutTests/platform/mac/virtual/slimmingpaint/fast/text/international/bidi-menulist-expected.txt
index ae2b4e1556f643af7344b3a5d078d9683fda9da1..e1919c075cb71564540e20b524d5969234091434 100644
--- a/LayoutTests/platform/mac/virtual/slimmingpaint/fast/text/international/bidi-menulist-expected.txt
+++ b/LayoutTests/platform/mac/virtual/slimmingpaint/fast/text/international/bidi-menulist-expected.txt
@@ -6,53 +6,53 @@ layer at (0,0) size 800x600
       RenderBlock {P} at (0,0) size 784x54
         RenderText {#text} at (0,0) size 458x18
           text run at (0,0) width 458: "This tests that bidirectional text is correctly rendered in popup controls."
-        RenderBR {BR} at (457,14) size 1x0
+        LayoutBR {BR} at (457,14) size 1x0
         RenderText {#text} at (0,18) size 773x36
           text run at (0,18) width 773: "The order of the text below each popup button should match the order of the select's option text, and the order of the text"
           text run at (0,36) width 124: "in the popup menu."
       RenderBlock (anonymous) at (0,70) size 784x36
         RenderText {#text} at (0,0) size 286x18
           text run at (0,0) width 286: "1) direction: rtl; -webkit-rtl-ordering: logical"
-        RenderBR {BR} at (285,14) size 1x0
+        LayoutBR {BR} at (285,14) size 1x0
         RenderMenuList {SELECT} at (0,18) size 100x18 [bgcolor=#F8F8F8]
           RenderBlock (anonymous) at (0,0) size 100x18
             RenderText at (17,2) size 60x13
               text run at (17,2) width 42 RTL: "\x{5D0}\x{5E4}\x{5E8}\x{5E1}\x{5DE}\x{5D5}\x{5DF}"
               text run at (58,2) width 19: "abc"
-        RenderBR {BR} at (100,31) size 0x0
+        LayoutBR {BR} at (100,31) size 0x0
       RenderBlock {DIV} at (0,106) size 100x19
         RenderText {#text} at (0,1) size 82x18
           text run at (0,1) width 23: "abc"
           text run at (22,1) width 60 RTL: "\x{5D0}\x{5E4}\x{5E8}\x{5E1}\x{5DE}\x{5D5}\x{5DF}"
       RenderBlock (anonymous) at (0,125) size 784x54
-        RenderBR {BR} at (0,0) size 0x18
+        LayoutBR {BR} at (0,0) size 0x18
         RenderText {#text} at (0,18) size 118x18
           text run at (0,18) width 118: "2) text-align: right"
-        RenderBR {BR} at (117,32) size 1x0
+        LayoutBR {BR} at (117,32) size 1x0
         RenderMenuList {SELECT} at (0,36) size 200x18 [bgcolor=#F8F8F8]
           RenderBlock (anonymous) at (0,0) size 200x18
             RenderText at (8,2) size 60x13
               text run at (8,2) width 19: "abc"
               text run at (26,2) width 42 RTL: "\x{5D0}\x{5E4}\x{5E8}\x{5E1}\x{5DE}\x{5D5}\x{5DF}"
-        RenderBR {BR} at (200,49) size 0x0
+        LayoutBR {BR} at (200,49) size 0x0
       RenderBlock {DIV} at (0,179) size 200x19
         RenderText {#text} at (0,1) size 82x18
           text run at (0,1) width 23: "abc"
           text run at (22,1) width 60 RTL: "\x{5D0}\x{5E4}\x{5E8}\x{5E1}\x{5DE}\x{5D5}\x{5DF}"
       RenderBlock (anonymous) at (0,198) size 784x54
-        RenderBR {BR} at (0,0) size 0x18
+        LayoutBR {BR} at (0,0) size 0x18
         RenderText {#text} at (0,18) size 72x18
           text run at (0,18) width 72: "3) No style"
-        RenderBR {BR} at (71,32) size 1x0
+        LayoutBR {BR} at (71,32) size 1x0
         RenderMenuList {SELECT} at (0,36) size 100x18 [bgcolor=#F8F8F8]
           RenderBlock (anonymous) at (0,0) size 100x18
             RenderText at (8,2) size 60x13
               text run at (8,2) width 19: "abc"
               text run at (26,2) width 42 RTL: "\x{5D0}\x{5E4}\x{5E8}\x{5E1}\x{5DE}\x{5D5}\x{5DF}"
-        RenderBR {BR} at (100,49) size 0x0
+        LayoutBR {BR} at (100,49) size 0x0
       RenderBlock {DIV} at (0,252) size 100x19
         RenderText {#text} at (0,1) size 82x18
           text run at (0,1) width 23: "abc"
           text run at (22,1) width 60 RTL: "\x{5D0}\x{5E4}\x{5E8}\x{5E1}\x{5DE}\x{5D5}\x{5DF}"
       RenderBlock (anonymous) at (0,271) size 784x18
-        RenderBR {BR} at (0,0) size 0x18
+        LayoutBR {BR} at (0,0) size 0x18