Move and rename RenderBR to LayoutBR.

LayoutTests/platform/linux/fast/inline-block/001-expected.txt

Index: LayoutTests/platform/linux/fast/inline-block/001-expected.txt
diff --git a/LayoutTests/platform/linux/fast/inline-block/001-expected.txt b/LayoutTests/platform/linux/fast/inline-block/001-expected.txt
index 65c74478beff6922fe91a583a1feec95aa64bd5b..d3d91b20afe8aa84c40f98ecfc840f87157a36a3 100644
--- a/LayoutTests/platform/linux/fast/inline-block/001-expected.txt
+++ b/LayoutTests/platform/linux/fast/inline-block/001-expected.txt
@@ -5,29 +5,29 @@ layer at (0,0) size 800x600
     RenderBody {BODY} at (8,8) size 784x584
       RenderText {#text} at (0,0) size 231x19
         text run at (0,0) width 231: "The two blue boxes should be aligned."
-      RenderBR {BR} at (231,15) size 0x0
+      LayoutBR {BR} at (231,15) size 0x0
       RenderText {#text} at (0,20) size 226x19
         text run at (0,20) width 226: "The two red boxes should be aligned."
-      RenderBR {BR} at (226,35) size 0x0
+      LayoutBR {BR} at (226,35) size 0x0
       RenderText {#text} at (0,40) size 320x19
         text run at (0,40) width 320: "The text in the blue boxes should be on the same line."
-      RenderBR {BR} at (320,55) size 0x0
+      LayoutBR {BR} at (320,55) size 0x0
       RenderText {#text} at (0,60) size 315x19
         text run at (0,60) width 315: "The text in the red boxes should be on the same line."
-      RenderBR {BR} at (315,75) size 0x0
+      LayoutBR {BR} at (315,75) size 0x0
       RenderText {#text} at (0,80) size 601x19
         text run at (0,80) width 601: "The top of the first red box should line up with the bottom of the second last line of the last blue box."
-      RenderBR {BR} at (601,95) size 0x0
+      LayoutBR {BR} at (601,95) size 0x0
       RenderBlock {P} at (0,100) size 62x84 [border: (2px solid #0000FF)]
         RenderText {#text} at (2,2) size 58x19
           text run at (2,2) width 58: "All on the"
-        RenderBR {BR} at (60,17) size 0x0
+        LayoutBR {BR} at (60,17) size 0x0
         RenderText {#text} at (2,22) size 58x19
           text run at (2,22) width 58: "All on the"
-        RenderBR {BR} at (60,37) size 0x0
+        LayoutBR {BR} at (60,37) size 0x0
         RenderText {#text} at (2,42) size 58x19
           text run at (2,42) width 58: "All on the"
-        RenderBR {BR} at (60,57) size 0x0
+        LayoutBR {BR} at (60,57) size 0x0
         RenderText {#text} at (2,62) size 58x19
           text run at (2,62) width 58: "All on the"
       RenderText {#text} at (62,162) size 4x19
@@ -36,13 +36,13 @@ layer at (0,0) size 800x600
         RenderBlock {SPAN} at (2,2) size 59x80
           RenderText {#text} at (0,0) size 59x19
             text run at (0,0) width 59: "same line."
-          RenderBR {BR} at (59,15) size 0x0
+          LayoutBR {BR} at (59,15) size 0x0
           RenderText {#text} at (0,20) size 59x19
             text run at (0,20) width 59: "same line."
-          RenderBR {BR} at (59,35) size 0x0
+          LayoutBR {BR} at (59,35) size 0x0
           RenderText {#text} at (0,40) size 59x19
             text run at (0,40) width 59: "same line."
-          RenderBR {BR} at (59,55) size 0x0
+          LayoutBR {BR} at (59,55) size 0x0
           RenderText {#text} at (0,60) size 59x19
             text run at (0,60) width 59: "same line."
       RenderText {#text} at (129,162) size 4x19