Move and rename RenderBR to LayoutBR.

LayoutTests/platform/win/fast/text/international/text-spliced-font-expected.txt

Index: LayoutTests/platform/win/fast/text/international/text-spliced-font-expected.txt
diff --git a/LayoutTests/platform/win/fast/text/international/text-spliced-font-expected.txt b/LayoutTests/platform/win/fast/text/international/text-spliced-font-expected.txt
index 2bef0569c00bf1fe69ff087a29fe13af21a7e5e4..8ee5e9375e608c1aa2353a74af202427ea1482fc 100644
--- a/LayoutTests/platform/win/fast/text/international/text-spliced-font-expected.txt
+++ b/LayoutTests/platform/win/fast/text/international/text-spliced-font-expected.txt
@@ -13,15 +13,15 @@ layer at (0,0) size 800x534
         RenderBlock {SPAN} at (0,0) size 16x176
           RenderText {#text} at (0,0) size 16x176
             text run at (0,0) width 176: "string\x{300C}\x{3042}\x{3001}\x{5909}\x{3063}\x{FF01}\x{300D}\x{3002}"
-        RenderBR {BR} at (16,162) size 0x16
+        LayoutBR {BR} at (16,162) size 0x16
         RenderInline {SPAN} at (0,0) size 224x16
           RenderText {#text} at (0,178) size 224x16
             text run at (0,178) width 224: "\x{90CA}\x{5916}\x{306E}\x{304E}\x{3089}\x{304E}\x{3089}\x{3072}\x{304B}\x{308B}\x{8349}\x{306E}\x{6CE2}\x{3002}"
-        RenderBR {BR} at (224,178) size 0x16
+        LayoutBR {BR} at (224,178) size 0x16
         RenderInline {SPAN} at (0,0) size 304x16
           RenderText {#text} at (0,194) size 304x16
             text run at (0,194) width 304: "ABCDEFGHIJKLM abcdefghijklm 1234567890"
-        RenderBR {BR} at (304,194) size 0x16
+        LayoutBR {BR} at (304,194) size 0x16
       RenderBlock {HR} at (0,250) size 784x2 [border: (1px inset #EEEEEE)]
       RenderBlock {P} at (0,268) size 784x16
         RenderText {#text} at (0,0) size 152x16
@@ -33,12 +33,12 @@ layer at (0,0) size 800x534
         RenderBlock {SPAN} at (0,0) size 16x176
           RenderText {#text} at (0,0) size 16x176
             text run at (0,0) width 176: "string\x{300C}\x{3042}\x{3001}\x{5909}\x{3063}\x{FF01}\x{300D}\x{3002}"
-        RenderBR {BR} at (16,162) size 0x16
+        LayoutBR {BR} at (16,162) size 0x16
         RenderInline {SPAN} at (0,0) size 224x16
           RenderText {#text} at (0,178) size 224x16
             text run at (0,178) width 224: "\x{90CA}\x{5916}\x{306E}\x{304E}\x{3089}\x{304E}\x{3089}\x{3072}\x{304B}\x{308B}\x{8349}\x{306E}\x{6CE2}\x{3002}"
-        RenderBR {BR} at (224,178) size 0x16
+        LayoutBR {BR} at (224,178) size 0x16
         RenderInline {SPAN} at (0,0) size 304x16
           RenderText {#text} at (0,194) size 304x16
             text run at (0,194) width 304: "ABCDEFGHIJKLM abcdefghijklm 1234567890"
-        RenderBR {BR} at (304,194) size 0x16
+        LayoutBR {BR} at (304,194) size 0x16