Move and rename RenderBR to LayoutBR.

LayoutTests/platform/mac/fast/forms/input-appearance-selection-expected.txt

Index: LayoutTests/platform/mac/fast/forms/input-appearance-selection-expected.txt
diff --git a/LayoutTests/platform/mac/fast/forms/input-appearance-selection-expected.txt b/LayoutTests/platform/mac/fast/forms/input-appearance-selection-expected.txt
index a0f11c96949a464bf766203ebb86d9552d8cc0b2..81505329ef01ead9356b040ac86d81cb33db409d 100644
--- a/LayoutTests/platform/mac/fast/forms/input-appearance-selection-expected.txt
+++ b/LayoutTests/platform/mac/fast/forms/input-appearance-selection-expected.txt
@@ -10,69 +10,69 @@ layer at (0,0) size 800x600
         LayoutTextControl {INPUT} at (0,0) size 123x19 [bgcolor=#FFFFFF] [border: (2px inset #EEEEEE)]
         RenderText {#text} at (0,0) size 0x0
       RenderBlock {DIV} at (0,69) size 784x486
-        RenderBR {BR} at (0,0) size 0x18
+        LayoutBR {BR} at (0,0) size 0x18
         RenderText {#text} at (0,18) size 201x18
           text run at (0,18) width 201: "Test 1: setSelectionRange(0, 0)"
-        RenderBR {BR} at (200,32) size 1x0
+        LayoutBR {BR} at (200,32) size 1x0
         RenderText {#text} at (0,36) size 48x18
           text run at (0,36) width 48: "Passed."
-        RenderBR {BR} at (47,50) size 1x0
-        RenderBR {BR} at (0,54) size 0x18
+        LayoutBR {BR} at (47,50) size 1x0
+        LayoutBR {BR} at (0,54) size 0x18
         RenderText {#text} at (0,72) size 164x18
           text run at (0,72) width 164: "Test 2: selectionEnd = 17"
-        RenderBR {BR} at (163,86) size 1x0
+        LayoutBR {BR} at (163,86) size 1x0
         RenderText {#text} at (0,90) size 48x18
           text run at (0,90) width 48: "Passed."
-        RenderBR {BR} at (47,104) size 1x0
-        RenderBR {BR} at (0,108) size 0x18
+        LayoutBR {BR} at (47,104) size 1x0
+        LayoutBR {BR} at (0,108) size 0x18
         RenderText {#text} at (0,126) size 161x18
           text run at (0,126) width 161: "Test 3: selectionStart = 1"
-        RenderBR {BR} at (160,140) size 1x0
+        LayoutBR {BR} at (160,140) size 1x0
         RenderText {#text} at (0,144) size 48x18
           text run at (0,144) width 48: "Passed."
-        RenderBR {BR} at (47,158) size 1x0
-        RenderBR {BR} at (0,162) size 0x18
+        LayoutBR {BR} at (47,158) size 1x0
+        LayoutBR {BR} at (0,162) size 0x18
         RenderText {#text} at (0,180) size 209x18
           text run at (0,180) width 209: "Test 4: setSelectionRange(10, 3)"
-        RenderBR {BR} at (208,194) size 1x0
+        LayoutBR {BR} at (208,194) size 1x0
         RenderText {#text} at (0,198) size 48x18
           text run at (0,198) width 48: "Passed."
-        RenderBR {BR} at (47,212) size 1x0
-        RenderBR {BR} at (0,216) size 0x18
+        LayoutBR {BR} at (47,212) size 1x0
+        LayoutBR {BR} at (0,216) size 0x18
         RenderText {#text} at (0,234) size 156x18
           text run at (0,234) width 156: "Test 5: selectionEnd = 2"
-        RenderBR {BR} at (155,248) size 1x0
+        LayoutBR {BR} at (155,248) size 1x0
         RenderText {#text} at (0,252) size 48x18
           text run at (0,252) width 48: "Passed."
-        RenderBR {BR} at (47,266) size 1x0
-        RenderBR {BR} at (0,270) size 0x18
+        LayoutBR {BR} at (47,266) size 1x0
+        LayoutBR {BR} at (0,270) size 0x18
         RenderText {#text} at (0,288) size 201x18
           text run at (0,288) width 201: "Test 6: setSelectionRange(5, 4)"
-        RenderBR {BR} at (200,302) size 1x0
+        LayoutBR {BR} at (200,302) size 1x0
         RenderText {#text} at (0,306) size 48x18
           text run at (0,306) width 48: "Passed."
-        RenderBR {BR} at (47,320) size 1x0
-        RenderBR {BR} at (0,324) size 0x18
+        LayoutBR {BR} at (47,320) size 1x0
+        LayoutBR {BR} at (0,324) size 0x18
         RenderText {#text} at (0,342) size 212x18
           text run at (0,342) width 212: "Test 7: setSelectionRange(-5, -4)"
-        RenderBR {BR} at (211,356) size 1x0
+        LayoutBR {BR} at (211,356) size 1x0
         RenderText {#text} at (0,360) size 48x18
           text run at (0,360) width 48: "Passed."
-        RenderBR {BR} at (47,374) size 1x0
-        RenderBR {BR} at (0,378) size 0x18
+        LayoutBR {BR} at (47,374) size 1x0
+        LayoutBR {BR} at (0,378) size 0x18
         RenderText {#text} at (0,396) size 215x18
           text run at (0,396) width 215: "Test 8: setSelectionRange(-5, 80)"
-        RenderBR {BR} at (214,410) size 1x0
+        LayoutBR {BR} at (214,410) size 1x0
         RenderText {#text} at (0,414) size 48x18
           text run at (0,414) width 48: "Passed."
-        RenderBR {BR} at (47,428) size 1x0
-        RenderBR {BR} at (0,432) size 0x18
+        LayoutBR {BR} at (47,428) size 1x0
+        LayoutBR {BR} at (0,432) size 0x18
         RenderText {#text} at (0,450) size 209x18
           text run at (0,450) width 209: "Test 9: setSelectionRange(3, 12)"
-        RenderBR {BR} at (208,464) size 1x0
+        LayoutBR {BR} at (208,464) size 1x0
         RenderText {#text} at (0,468) size 48x18
           text run at (0,468) width 48: "Passed."
-        RenderBR {BR} at (47,482) size 1x0
+        LayoutBR {BR} at (47,482) size 1x0
       RenderBlock {P} at (0,571) size 784x0
 layer at (11,45) size 117x13 scrollWidth 131
   RenderBlock {DIV} at (3,3) size 117x13