Rename/move counter rendering code to layout.

LayoutTests/platform/mac/css2.1/t1202-counter-04-b-expected.txt

Index: LayoutTests/platform/mac/css2.1/t1202-counter-04-b-expected.txt
diff --git a/LayoutTests/platform/mac/css2.1/t1202-counter-04-b-expected.txt b/LayoutTests/platform/mac/css2.1/t1202-counter-04-b-expected.txt
index 85ddbe2712117e6f707d554c4317a8ca8ed1006c..3d06fc2774ea34bbcd4e050b5e91e04c6428dc94 100644
--- a/LayoutTests/platform/mac/css2.1/t1202-counter-04-b-expected.txt
+++ b/LayoutTests/platform/mac/css2.1/t1202-counter-04-b-expected.txt
@@ -14,73 +14,73 @@ layer at (0,0) size 800x101
       RenderBlock {DIV} at (0,32) size 784x19
         RenderInline {SPAN} at (0,0) size 9x16
           RenderInline {<pseudo:before>} at (0,0) size 9x16
-            RenderCounter at (0,3) size 9x16
+            LayoutCounter at (0,3) size 9x16
               text run at (0,3) width 9: "\x{25A0}"
         RenderText {#text} at (8,3) size 5x16
           text run at (8,3) width 5: " "
         RenderInline {SPAN} at (0,0) size 10x16
           RenderInline {<pseudo:before>} at (0,0) size 10x16
-            RenderCounter at (12,3) size 10x16
+            LayoutCounter at (12,3) size 10x16
               text run at (12,3) width 10: "\x{25A0}"
         RenderText {#text} at (21,3) size 5x16
           text run at (21,3) width 5: " "
         RenderInline {SPAN} at (0,0) size 10x16
           RenderInline {<pseudo:before>} at (0,0) size 10x16
-            RenderCounter at (25,3) size 10x16
+            LayoutCounter at (25,3) size 10x16
               text run at (25,3) width 10: "\x{25A0}"
         RenderText {#text} at (34,3) size 5x16
           text run at (34,3) width 5: " "
         RenderInline {SPAN} at (0,0) size 9x16
           RenderInline {<pseudo:before>} at (0,0) size 9x16
-            RenderCounter at (38,3) size 9x16
+            LayoutCounter at (38,3) size 9x16
               text run at (38,3) width 9: "\x{25A0}"
         RenderText {#text} at (46,3) size 5x16
           text run at (46,3) width 5: " "
         RenderInline {SPAN} at (0,0) size 10x16
           RenderInline {<pseudo:before>} at (0,0) size 10x16
-            RenderCounter at (50,3) size 10x16
+            LayoutCounter at (50,3) size 10x16
               text run at (50,3) width 10: "\x{25A0}"
         RenderText {#text} at (59,3) size 5x16
           text run at (59,3) width 5: " "
         RenderInline {SPAN} at (0,0) size 10x16
           RenderInline {<pseudo:before>} at (0,0) size 10x16
-            RenderCounter at (63,3) size 10x16
+            LayoutCounter at (63,3) size 10x16
               text run at (63,3) width 10: "\x{25A0}"
         RenderText {#text} at (72,3) size 5x16
           text run at (72,3) width 5: " "
         RenderInline {SPAN} at (0,0) size 9x16
           RenderInline {<pseudo:before>} at (0,0) size 9x16
-            RenderCounter at (76,3) size 9x16
+            LayoutCounter at (76,3) size 9x16
               text run at (76,3) width 9: "\x{25A0}"
         RenderText {#text} at (84,3) size 5x16
           text run at (84,3) width 5: " "
         RenderInline {SPAN} at (0,0) size 10x16
           RenderInline {<pseudo:before>} at (0,0) size 10x16
-            RenderCounter at (88,3) size 10x16
+            LayoutCounter at (88,3) size 10x16
               text run at (88,3) width 10: "\x{25A0}"
         RenderText {#text} at (97,3) size 5x16
           text run at (97,3) width 5: " "
         RenderInline {SPAN} at (0,0) size 10x16
           RenderInline {<pseudo:before>} at (0,0) size 10x16
-            RenderCounter at (101,3) size 10x16
+            LayoutCounter at (101,3) size 10x16
               text run at (101,3) width 10: "\x{25A0}"
         RenderText {#text} at (110,3) size 5x16
           text run at (110,3) width 5: " "
         RenderInline {SPAN} at (0,0) size 9x16
           RenderInline {<pseudo:before>} at (0,0) size 9x16
-            RenderCounter at (114,3) size 9x16
+            LayoutCounter at (114,3) size 9x16
               text run at (114,3) width 9: "\x{25A0}"
         RenderText {#text} at (122,3) size 5x16
           text run at (122,3) width 5: " "
         RenderInline {SPAN} at (0,0) size 10x16
           RenderInline {<pseudo:before>} at (0,0) size 10x16
-            RenderCounter at (126,3) size 10x16
+            LayoutCounter at (126,3) size 10x16
               text run at (126,3) width 10: "\x{25A0}"
         RenderText {#text} at (135,3) size 5x16
           text run at (135,3) width 5: " "
         RenderInline {SPAN} at (0,0) size 10x16
           RenderInline {<pseudo:before>} at (0,0) size 10x16
-            RenderCounter at (139,3) size 10x16
+            LayoutCounter at (139,3) size 10x16
               text run at (139,3) width 10: "\x{25A0}"
         RenderText {#text} at (0,0) size 0x0
       RenderBlock {DIV} at (0,51) size 784x26