Don't allow whitespace between elements with display:table-cell

LayoutTests/platform/linux/fast/forms/button-table-styles-expected.txt

Index: LayoutTests/platform/linux/fast/forms/button-table-styles-expected.txt
diff --git a/LayoutTests/platform/linux/fast/forms/button-table-styles-expected.txt b/LayoutTests/platform/linux/fast/forms/button-table-styles-expected.txt
index 02299e41abb594a8eb382b574ce52237aee9417b..03fbea09c80884f696a89366c9710d069a25084b 100644
--- a/LayoutTests/platform/linux/fast/forms/button-table-styles-expected.txt
+++ b/LayoutTests/platform/linux/fast/forms/button-table-styles-expected.txt
@@ -4,9 +4,9 @@ layer at (0,0) size 800x600
   LayoutBlockFlow {HTML} at (0,0) size 800x600
     LayoutBlockFlow {BODY} at (8,8) size 784x584
       LayoutBlockFlow (anonymous) at (0,0) size 784x20
-        LayoutText {#text} at (0,0) size 327x19
-          text run at (0,0) width 327: "This tests that buttons don't honor table display styles. "
-        LayoutBR {BR} at (327,15) size 0x0
+        LayoutText {#text} at (0,0) size 502x19
+          text run at (0,0) width 502: "This tests that buttons do not allow table display styles except for display:table-cell. "
+        LayoutBR {BR} at (502,15) size 0x0
       LayoutButton {INPUT} at (0,20) size 93x22 [bgcolor=#C0C0C0] [border: (2px outset #C0C0C0)]
         LayoutBlockFlow (anonymous) at (8,3) size 77x16
           LayoutText {#text} at (0,0) size 77x16
@@ -15,7 +15,7 @@ layer at (0,0) size 800x600
         LayoutBlockFlow (anonymous) at (8,3) size 77x16
           LayoutText {#text} at (0,0) size 77x16
             text run at (0,0) width 77: "display: table"
-      LayoutBlockFlow (anonymous) at (0,64) size 784x398
+      LayoutBlockFlow (anonymous) at (0,64) size 784x334
         LayoutBR {BR} at (0,0) size 0x19
         LayoutBR {BR} at (0,20) size 0x19
         LayoutButton {INPUT} at (0,40) size 127x22 [bgcolor=#C0C0C0] [border: (2px outset #C0C0C0)]
@@ -116,27 +116,24 @@ layer at (0,0) size 800x600
           text run at (282,293) width 4: " "
         LayoutBR {BR} at (286,308) size 0x0
         LayoutBR {BR} at (0,314) size 0x19
-        LayoutButton {INPUT} at (0,334) size 117x22 [bgcolor=#C0C0C0] [border: (2px outset #C0C0C0)]
-          LayoutBlockFlow (anonymous) at (8,3) size 101x16
-            LayoutText {#text} at (0,0) size 101x16
-              text run at (0,0) width 101: "display: table-cell"
-        LayoutText {#text} at (117,335) size 4x19
-          text run at (117,335) width 4: " "
-        LayoutButton {INPUT} at (121,334) size 117x22 [bgcolor=#C0C0C0] [border: (2px outset #C0C0C0)]
-          LayoutBlockFlow (anonymous) at (8,3) size 101x16
-            LayoutText {#text} at (0,0) size 101x16
-              text run at (0,0) width 101: "display: table-cell"
-        LayoutText {#text} at (238,335) size 4x19
-          text run at (238,335) width 4: " "
-        LayoutBR {BR} at (242,350) size 0x0
-        LayoutBR {BR} at (0,356) size 0x19
-        LayoutButton {INPUT} at (0,376) size 139x22 [bgcolor=#C0C0C0] [border: (2px outset #C0C0C0)]
+      LayoutButton {INPUT} at (0,398) size 117x22 [bgcolor=#C0C0C0] [border: (2px outset #C0C0C0)]
+        LayoutBlockFlow (anonymous) at (8,3) size 101x16
+          LayoutText {#text} at (0,0) size 101x16
+            text run at (0,0) width 101: "display: table-cell"
+      LayoutButton {INPUT} at (0,420) size 117x22 [bgcolor=#C0C0C0] [border: (2px outset #C0C0C0)]
+        LayoutBlockFlow (anonymous) at (8,3) size 101x16
+          LayoutText {#text} at (0,0) size 101x16
+            text run at (0,0) width 101: "display: table-cell"
+      LayoutBlockFlow (anonymous) at (0,442) size 784x62
+        LayoutBR {BR} at (0,0) size 0x19
+        LayoutBR {BR} at (0,20) size 0x19
+        LayoutButton {INPUT} at (0,40) size 139x22 [bgcolor=#C0C0C0] [border: (2px outset #C0C0C0)]
           LayoutBlockFlow (anonymous) at (8,3) size 123x16
             LayoutText {#text} at (0,0) size 123x16
               text run at (0,0) width 123: "display: table-caption"
-        LayoutText {#text} at (139,377) size 4x19
-          text run at (139,377) width 4: " "
-        LayoutButton {INPUT} at (143,376) size 139x22 [bgcolor=#C0C0C0] [border: (2px outset #C0C0C0)]
+        LayoutText {#text} at (139,41) size 4x19
+          text run at (139,41) width 4: " "
+        LayoutButton {INPUT} at (143,40) size 139x22 [bgcolor=#C0C0C0] [border: (2px outset #C0C0C0)]
           LayoutBlockFlow (anonymous) at (8,3) size 123x16
             LayoutText {#text} at (0,0) size 123x16
               text run at (0,0) width 123: "display: table-caption"