Move and rename RenderBR to LayoutBR.

LayoutTests/platform/win/fast/css/text-rendering-expected.txt

Index: LayoutTests/platform/win/fast/css/text-rendering-expected.txt
diff --git a/LayoutTests/platform/win/fast/css/text-rendering-expected.txt b/LayoutTests/platform/win/fast/css/text-rendering-expected.txt
index fda6c7f8e0ed350f600a2b036637e80085b5af13..22f3af2a8eae96b56884f00bf67340a020a099eb 100644
--- a/LayoutTests/platform/win/fast/css/text-rendering-expected.txt
+++ b/LayoutTests/platform/win/fast/css/text-rendering-expected.txt
@@ -9,25 +9,25 @@ layer at (0,0) size 800x600
           text run at (0,70) width 227: "ligatures)"
       RenderText {#text} at (226,109) size 5x17
         text run at (226,109) width 5: " "
-      RenderBR {BR} at (230,123) size 1x0
+      LayoutBR {BR} at (230,123) size 1x0
       RenderInline {SPAN} at (0,0) size 677x135
         RenderText {#text} at (0,139) size 677x135
           text run at (0,139) width 677: "fin LYAWA (No kerning or"
           text run at (0,208) width 227: "ligatures)"
       RenderText {#text} at (226,247) size 5x17
         text run at (226,247) width 5: " "
-      RenderBR {BR} at (230,261) size 1x0
+      LayoutBR {BR} at (230,261) size 1x0
       RenderInline {SPAN} at (0,0) size 611x135
         RenderText {#text} at (0,277) size 611x135
           text run at (0,277) width 611: "fin LYAWA (Kerning and"
           text run at (0,346) width 227: "ligatures)"
       RenderText {#text} at (226,385) size 5x17
         text run at (226,385) width 5: " "
-      RenderBR {BR} at (230,399) size 1x0
+      LayoutBR {BR} at (230,399) size 1x0
       RenderInline {SPAN} at (0,0) size 611x135
         RenderText {#text} at (0,415) size 611x135
           text run at (0,415) width 611: "fin LYAWA (Kerning and"
           text run at (0,484) width 227: "ligatures)"
       RenderText {#text} at (226,523) size 5x17
         text run at (226,523) width 5: " "
-      RenderBR {BR} at (230,537) size 1x0
+      LayoutBR {BR} at (230,537) size 1x0