Move and rename RenderBR to LayoutBR.

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

Index: LayoutTests/platform/mac/fast/forms/input-appearance-height-expected.txt
diff --git a/LayoutTests/platform/mac/fast/forms/input-appearance-height-expected.txt b/LayoutTests/platform/mac/fast/forms/input-appearance-height-expected.txt
index cdaf3b47cf554050370afe18965260327334af15..12513472fb7c9c00db9e87afad6918573f0f461b 100644
--- a/LayoutTests/platform/mac/fast/forms/input-appearance-height-expected.txt
+++ b/LayoutTests/platform/mac/fast/forms/input-appearance-height-expected.txt
@@ -12,19 +12,19 @@ layer at (0,0) size 800x600
         LayoutTextControl {INPUT} at (36.89,0) size 123x19 [bgcolor=#FFFFFF] [border: (2px inset #EEEEEE)]
         RenderText {#text} at (159,0) size 5x18
           text run at (159,0) width 5: " "
-        RenderBR {BR} at (163,14) size 1x0
+        LayoutBR {BR} at (163,14) size 1x0
         RenderText {#text} at (0,19) size 28x18
           text run at (0,19) width 28: "text "
         LayoutTextControl {INPUT} at (27.98,19) size 123x19 [bgcolor=#FFFFFF] [border: (2px inset #EEEEEE)]
         RenderText {#text} at (150,19) size 5x18
           text run at (150,19) width 5: " "
-        RenderBR {BR} at (154,33) size 1x0
+        LayoutBR {BR} at (154,33) size 1x0
         RenderText {#text} at (0,38) size 66x18
           text run at (0,38) width 66: "checkbox "
         RenderBlock {INPUT} at (68.20,42) size 12x12
         RenderText {#text} at (83,38) size 5x18
           text run at (83,38) width 5: " "
-        RenderBR {BR} at (87,52) size 1x0
+        LayoutBR {BR} at (87,52) size 1x0
         RenderText {#text} at (0,57) size 26x18
           text run at (0,57) width 26: "file "
         RenderFileUploadControl {INPUT} at (25.31,58) size 237x18 "No file chosen"
@@ -34,19 +34,19 @@ layer at (0,0) size 800x600
                 text run at (0,0) width 62: "Choose File"
         RenderText {#text} at (262,57) size 5x18
           text run at (262,57) width 5: " "
-        RenderBR {BR} at (266,71) size 1x0
+        LayoutBR {BR} at (266,71) size 1x0
         RenderText {#text} at (0,76) size 44x18
           text run at (0,76) width 44: "image "
         LayoutImage {INPUT} at (43.09,89) size 10x1
         RenderText {#text} at (53,76) size 5x18
           text run at (53,76) width 5: " "
-        RenderBR {BR} at (57,90) size 1x0
+        LayoutBR {BR} at (57,90) size 1x0
         RenderText {#text} at (0,94) size 37x18
           text run at (0,94) width 37: "radio "
         RenderBlock {INPUT} at (39.78,97) size 12x13
         RenderText {#text} at (54,94) size 5x18
           text run at (54,94) width 5: " "
-        RenderBR {BR} at (58,108) size 1x0
+        LayoutBR {BR} at (58,108) size 1x0
         RenderText {#text} at (0,116) size 40x18
           text run at (0,116) width 40: "range "
         LayoutSlider {INPUT} at (41.53,115) size 129x15 [color=#909090] [bgcolor=#FFFFFF]
@@ -55,7 +55,7 @@ layer at (0,0) size 800x600
               RenderBlock {DIV} at (57,0) size 15x15
         RenderText {#text} at (172,116) size 5x18
           text run at (172,116) width 5: " "
-        RenderBR {BR} at (176,130) size 1x0
+        LayoutBR {BR} at (176,130) size 1x0
         RenderText {#text} at (0,134) size 35x18
           text run at (0,134) width 35: "reset "
         RenderButton {INPUT} at (34.20,135) size 44.94x18 [bgcolor=#C0C0C0]
@@ -64,7 +64,7 @@ layer at (0,0) size 800x600
               text run at (0,0) width 29: "Reset"
         RenderText {#text} at (79,134) size 5x18
           text run at (79,134) width 5: " "
-        RenderBR {BR} at (83,148) size 1x0
+        LayoutBR {BR} at (83,148) size 1x0
         RenderText {#text} at (0,153) size 48x18
           text run at (0,153) width 48: "submit "
         RenderButton {INPUT} at (47.56,154) size 53.25x18 [bgcolor=#C0C0C0]
@@ -73,19 +73,19 @@ layer at (0,0) size 800x600
               text run at (0,0) width 38: "Submit"
         RenderText {#text} at (100,153) size 5x18
           text run at (100,153) width 5: " "
-        RenderBR {BR} at (104,167) size 1x0
+        LayoutBR {BR} at (104,167) size 1x0
         RenderText {#text} at (0,172) size 51x18
           text run at (0,172) width 51: "isindex "
         LayoutTextControl {INPUT} at (50.22,172) size 123x19 [bgcolor=#FFFFFF] [border: (2px inset #EEEEEE)]
         RenderText {#text} at (173,172) size 5x18
           text run at (173,172) width 5: " "
-        RenderBR {BR} at (177,186) size 1x0
+        LayoutBR {BR} at (177,186) size 1x0
         RenderText {#text} at (0,191) size 65x18
           text run at (0,191) width 65: "password "
         LayoutTextControl {INPUT} at (64.44,191) size 123x19 [bgcolor=#FFFFFF] [border: (2px inset #EEEEEE)]
         RenderText {#text} at (187,191) size 5x18
           text run at (187,191) width 5: " "
-        RenderBR {BR} at (191,205) size 1x0
+        LayoutBR {BR} at (191,205) size 1x0
         RenderText {#text} at (0,210) size 45x18
           text run at (0,210) width 45: "search "
         LayoutTextControl {INPUT} at (44.86,210) size 125x19 [bgcolor=#FFFFFF] [border: (2px inset #EEEEEE)]