Bug 210968

The test is only failing in GTK and WPE test bots. It's passing in buildbox. Thus, I mark it at the moment as flaky:

fast/css/resize-corner-tracking.html [ Failure ImageOnlyFailure Pass ]

See: https://build.webkit.org/results/GTK%20Linux%2064-bit%20Release%20(Tests)/r260619%20(13461)/fast/css/resize-corner-tracking-diff.txt

--- /home/slave/webkitgtk/gtk-linux-64-release-tests/build/layout-test-results/fast/css/resize-corner-tracking-expected.txt
+++ /home/slave/webkitgtk/gtk-linux-64-release-tests/build/layout-test-results/fast/css/resize-corner-tracking-actual.txt
@@ -17,24 +17,24 @@
         RenderText {#text} at (720,0) size 5x17
           text run at (720,0) width 5: "."
       RenderBlock {HR} at (0,52) size 784x2 [border: (1px inset #000000)]
-      RenderBlock (anonymous) at (0,187) size 784x371
-        RenderText {#text} at (169,107) size 4x17
-          text run at (169,107) width 4: " "
+      RenderBlock (anonymous) at (0,187) size 784x378
+        RenderText {#text} at (173,111) size 4x17
+          text run at (173,111) width 4: " "
         RenderBR {BR} at (0,0) size 0x0
-        RenderText {#text} at (224,178) size 4x17
-          text run at (224,178) width 4: " "
+        RenderText {#text} at (227,185) size 4x17
+          text run at (227,185) width 4: " "
         RenderBR {BR} at (0,0) size 0x0
         RenderText {#text} at (0,0) size 0x0
 layer at (8,70) size 173x125 clip at (10,72) size 169x121
   RenderBlock {DIV} at (0,62) size 173x125 [border: (2px solid #0000FF)]
-layer at (8,195) size 169x121 clip at (10,197) size 165x117
-  RenderTextControl {TEXTAREA} at (0,0) size 169x121 [bgcolor=#FFFFFF] [border: (2px solid #0000FF)]
-    RenderBlock {DIV} at (4,4) size 161x18
-layer at (10,322) size 220x63 clip at (11,323) size 218x61
-  RenderTextControl {TEXTAREA} at (2,127) size 220x63 [bgcolor=#FFFFFF] [border: (1px solid #000000)]
-    RenderBlock {DIV} at (3,3) size 214x18
-layer at (8,391) size 323x175
-  RenderIFrame {IFRAME} at (0,196) size 323x175 [border: (2px inset #000000)]
+layer at (8,195) size 173x125 clip at (10,197) size 169x121
+  RenderTextControl {TEXTAREA} at (0,0) size 173x125 [bgcolor=#FFFFFF] [border: (2px solid #0000FF)]
+    RenderBlock {DIV} at (4,4) size 165x18
+layer at (10,326) size 223x66 clip at (11,327) size 221x64
+  RenderTextControl {TEXTAREA} at (2,131) size 223x66 [bgcolor=#FFFFFF] [border: (1px solid #000000)]
+    RenderBlock {DIV} at (3,3) size 217x18
+layer at (8,398) size 323x175
+  RenderIFrame {IFRAME} at (0,203) size 323x175 [border: (2px inset #000000)]
     layer at (0,0) size 319x171
       RenderView at (0,0) size 319x171
     layer at (0,0) size 319x171