Move and rename RenderBR to LayoutBR.

LayoutTests/platform/win/fast/forms/search/search-appearance-basic-expected.txt

Index: LayoutTests/platform/win/fast/forms/search/search-appearance-basic-expected.txt
diff --git a/LayoutTests/platform/win/fast/forms/search/search-appearance-basic-expected.txt b/LayoutTests/platform/win/fast/forms/search/search-appearance-basic-expected.txt
index f9e641c01d3aa8467a0394dc6a6c4b4a13045624..2104906a81b70aa00f9be48b6519dd934b84a668 100644
--- a/LayoutTests/platform/win/fast/forms/search/search-appearance-basic-expected.txt
+++ b/LayoutTests/platform/win/fast/forms/search/search-appearance-basic-expected.txt
@@ -15,7 +15,7 @@ layer at (0,0) size 800x402
             RenderBlock {DIV} at (0,2.50) size 1x11
             RenderBlock {DIV} at (1,0) size 155x16
             RenderBlock {DIV} at (157,3.50) size 9x9
-        RenderBR {BR} at (370,6) size 0x17
+        LayoutBR {BR} at (370,6) size 0x17
         LayoutTextControl {INPUT} at (4,34) size 175x22 [bgcolor=#FFFFFF] [border: (2px inset #EEEEEE)]
           RenderFlexibleBox {DIV} at (3,3) size 169x16
             RenderBlock {DIV} at (0,2.50) size 1x11
@@ -28,7 +28,7 @@ layer at (0,0) size 800x402
             RenderBlock {DIV} at (1,0) size 155x16
         RenderText {#text} at (370,36) size 4x17
           text run at (370,36) width 4: " "
-        RenderBR {BR} at (374,36) size 0x17
+        LayoutBR {BR} at (374,36) size 0x17
         LayoutTextControl {INPUT} at (4,64) size 177x24 [bgcolor=#FFFFFF] [border: (3px solid #00FF00)]
           RenderFlexibleBox {DIV} at (4,4) size 169x16
             RenderBlock {DIV} at (0,2.50) size 1x11
@@ -41,7 +41,7 @@ layer at (0,0) size 800x402
             RenderBlock {DIV} at (1,0) size 155x16
         RenderText {#text} at (372,67) size 4x17
           text run at (372,67) width 4: " "
-        RenderBR {BR} at (376,67) size 0x17
+        LayoutBR {BR} at (376,67) size 0x17
       RenderBlock {DIV} at (0,92) size 163x45 [bgcolor=#888888]
         LayoutTextControl {INPUT} at (11,9) size 133x22 [bgcolor=#00FF00] [border: (2px inset #EEEEEE)]
           RenderFlexibleBox {DIV} at (3,3) size 127x16
@@ -55,14 +55,14 @@ layer at (0,0) size 800x402
             RenderBlock {DIV} at (1,0) size 155x16
         RenderText {#text} at (183,6) size 4x17
           text run at (183,6) width 4: " "
-        RenderBR {BR} at (187,6) size 0x17
+        LayoutBR {BR} at (187,6) size 0x17
         LayoutTextControl {INPUT} at (4,34) size 175x22 [bgcolor=#FFFFFF] [border: (2px inset #EEEEEE)]
           RenderFlexibleBox {DIV} at (3,3) size 169x16
             RenderBlock {DIV} at (0,2.50) size 1x11
             RenderBlock {DIV} at (1,0) size 155x16
         RenderText {#text} at (183,36) size 4x17
           text run at (183,36) width 4: " "
-        RenderBR {BR} at (187,36) size 0x17
+        LayoutBR {BR} at (187,36) size 0x17
         LayoutTextControl {INPUT} at (4,72) size 201x24 [bgcolor=#FFFFFF] [border: (2px inset #EEEEEE)]
           RenderFlexibleBox {DIV} at (3,3) size 195x18
             RenderBlock {DIV} at (0,3.50) size 1x11
@@ -81,7 +81,7 @@ layer at (0,0) size 800x402
             RenderBlock {DIV} at (1,0) size 270x28
         RenderText {#text} at (780,75) size 4x17
           text run at (780,75) width 4: " "
-        RenderBR {BR} at (784,75) size 0x17
+        LayoutBR {BR} at (784,75) size 0x17
         LayoutTextControl {INPUT} at (6,118) size 252x32 [bgcolor=#FFFFFF] [border: (3px inset #EEEEEE)]
           RenderFlexibleBox {DIV} at (4.50,4.50) size 243x23
             RenderBlock {DIV} at (0,6) size 1x11
@@ -94,7 +94,7 @@ layer at (0,0) size 800x402
             RenderBlock {DIV} at (1,0) size 290x31
         RenderText {#text} at (614,126) size 4x17
           text run at (614,126) width 4: " "
-        RenderBR {BR} at (618,126) size 0x17
+        LayoutBR {BR} at (618,126) size 0x17
         LayoutTextControl {INPUT} at (6,177) size 252x32 [bgcolor=#FFFFFF] [border: (3px inset #EEEEEE)]
           RenderFlexibleBox {DIV} at (4.50,4.50) size 243x23
             RenderBlock {DIV} at (3,1.50) size 20x20
@@ -107,7 +107,7 @@ layer at (0,0) size 800x402
             RenderBlock {DIV} at (37,0) size 254x31
         RenderText {#text} at (614,185) size 4x17
           text run at (614,185) width 4: " "
-        RenderBR {BR} at (618,185) size 0x17
+        LayoutBR {BR} at (618,185) size 0x17
         LayoutTextControl {INPUT} at (4,224) size 159x21 [bgcolor=#FFFFFF] [border: (1px solid #BDC7D8)]
           RenderFlexibleBox {DIV} at (18,4) size 137x13
             RenderBlock {DIV} at (2,1) size 11x11