Bug 206893

Summary:	REGRESSION: ( r255226 ) [ iOS ] compositing/backing/page-scale-overlap-in-iframe.html is failing
Product:	WebKit	Reporter:	Truitt Savell <tsavell>
Component:	New Bugs	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	Lawrence.j, simon.fraser, webkit-bot-watchers-bugzilla, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Truitt Savell 2020-01-28 10:58:02 PST

compositing/backing/page-scale-overlap-in-iframe.html

This test is failing from introduction in https://trac.webkit.org/changeset/255226/webkit

History:
https://results.webkit.org/?suite=layout-tests&test=compositing%2Fbacking%2Fpage-scale-overlap-in-iframe.html

Diff:
--- /Volumes/Data/slave/ios-simulator-13-release-tests-wk2/build/layout-test-results/compositing/backing/page-scale-overlap-in-iframe-expected.txt
+++ /Volumes/Data/slave/ios-simulator-13-release-tests-wk2/build/layout-test-results/compositing/backing/page-scale-overlap-in-iframe-actual.txt
@@ -37,13 +37,26 @@
                               (bounds 300.00 150.00)
                               (drawsContent 1)
                               (backingStoreAttached 1)
-                              (children 1
+                              (children 2
                                 (GraphicsLayer
                                   (bounds 300.00 150.00)
                                   (backingStoreAttached 1)
                                   (children 1
                                     (GraphicsLayer
                                       (bounds 300.00 150.00)
+                                      (backingStoreAttached 1)
+                                    )
+                                  )
+                                )
+                                (GraphicsLayer
+                                  (bounds 300.00 150.00)
+                                  (backingStoreAttached 1)
+                                  (children 1
+                                    (GraphicsLayer
+                                      (position 0.00 109.00)
+                                      (bounds 300.00 41.00)
+                                      (contentsOpaque 1)
+                                      (drawsContent 1)
                                       (backingStoreAttached 1)
                                     )
                                   )

Comment 1 Radar WebKit Bug Importer 2020-01-28 10:58:14 PST

<rdar://problem/58961562>

Comment 2 Simon Fraser (smfr) 2020-01-28 18:38:04 PST

https://trac.webkit.org/changeset/255332/webkit

I blame --new-baseline which always puts new results too deep.

Comment 3 Jason Lawrence 2020-02-03 08:42:13 PST

This issue appears to be happening on iOS release and debug for iPad still. 

Diff:
--- /Volumes/Data/slave/ipados-simulator-13-debug-tests-wk2/build/layout-test-results/compositing/backing/page-scale-overlap-in-iframe-expected.txt
+++ /Volumes/Data/slave/ipados-simulator-13-debug-tests-wk2/build/layout-test-results/compositing/backing/page-scale-overlap-in-iframe-actual.txt
@@ -1,11 +1,11 @@
 
 (GraphicsLayer
   (anchor 0.00 0.00)
-  (bounds 800.00 1370.00)
+  (bounds 800.00 1046.00)
   (backingStoreAttached 1)
   (children 1
     (GraphicsLayer
-      (bounds 800.00 1370.00)
+      (bounds 800.00 1046.00)
       (contentsOpaque 1)
       (backingStoreAttached 1)
       (children 1