Fix RenderLayer::collectLayers logic bug.

LayoutTests/TestExpectations

 # See http://trac.webkit.org/wiki/TestExpectations for more information on this file.
 
 crbug.com/237000 [ Win Linux ] virtual/gpu/fast/canvas/getPutImageDataPairTest.html [ Slow ]
 crbug.com/24182 [ Debug ] css3/flexbox/multiline-justify-content.html [ Slow ]
 webkit.org/b/82097 [ Debug ] editing/selection/move-by-word-visually-crash-test-5.html [ Slow ]
 webkit.org/b/92287 fast/canvas/webgl/context-creation-and-destruction.html [ Pass Timeout Failure ]
 webkit.org/b/92287 virtual/gpu/fast/canvas/webgl/context-creation-and-destruction.html [ Pass Timeout Failure ]
 crbug.com/24182 [ Debug ] fast/css/large-list-of-rules-crash.html [ Slow ]
 crbug.com/24182 [ Debug ] fast/dom/shadow/tree-scope-crash.html [ Slow ]
 crbug.com/24182 [ Debug ] fast/dom/Window/window-postmessage-clone-really-deep-array.html [ Slow ]
@@ skipping 1409 matching lines @@
 webkit.org/b/107962 [ Release ] http/tests/loading/redirect-methods.html [ Pass Failure ]
 
 webkit.org/b/108876 [ Linux Win ] media/track/track-cues-cuechange.html [ Slow ]
 webkit.org/b/108876 [ Linux Win ] media/track/track-cues-enter-exit.html [ Slow ]
 
 webkit.org/b/108912 inspector-protocol/heap-profiler/heap-snapshot-with-detached-dom-tree.html [ Pass Failure ]
 
 webkit.org/b/109312 fast/canvas/canvas-drawImage-shadow.html [ Pass Failure ]
 webkit.org/b/109312 virtual/gpu/fast/canvas/canvas-drawImage-shadow.html [ Pass Failure ]
 
-# Logic in RenderLayer::collectLayers needs to be fixed.
-crbug.com/238282 compositing/overflow/out-of-flow-pos-descendants-should-affect-all-ancestors.html [ Failure ]
-crbug.com/238282 compositing/overflow/textarea-scroll-touch.html [ Failure ]
-crbug.com/238282 virtual/gpu/compositedscrolling/overflow/out-of-flow-pos-descendants-should-affect-all-ancestors.html [ Failure ]
-crbug.com/238282 virtual/gpu/compositedscrolling/overflow/textarea-scroll-touch.html [ Failure ]
-crbug.com/238282 virtual/softwarecompositing/overflow/out-of-flow-pos-descendants-should-affect-all-ancestors.html [ Failure ]
-crbug.com/238282 virtual/softwarecompositing/overflow/opt-into-composited-scrolling-positioned-ancestor.html [ Failure ]
-
 # Will need updated baselines with the opt-in fixes.
 crbug.com/234482 [ Linux Win Mac ] virtual/gpu/compositedscrolling/overflow/overflow-scroll.html [ Failure ]
 
 # ENABLE_ENCRYPTED_MEDIA_V2 is not enabled.
 webkit.org/b/97037 media/encrypted-media/encrypted-media-v2-events.html [ Timeout ]
 webkit.org/b/97037 media/encrypted-media/encrypted-media-v2-syntax.html [ Timeout ]
 
 webkit.org/b/109963 [ Debug ] inspector/profiler/heap-snapshot-get-profile-crash.html [ Pass Crash ]
 
 webkit.org/b/110247 [ Debug ] fast/workers/storage/interrupt-database.html [ Pass Crash Slow ]
@@ skipping 165 matching lines @@
 crbug.com/236344 fast/forms/calendar-picker/week-picker-key-operations.html [ Failure Pass ]
 
 crbug.com/237270 fast/css/custom-font-xheight.html [ Pass Timeout ]
 crbug.com/237270 fast/css/sticky/sticky-top-zoomed.html [ Pass Timeout ]
 crbug.com/237270 fast/css/variables/invalid-font-reference.html [ Pass Timeout ]
 crbug.com/237270 http/tests/history/replacestate-post-to-get-2.html [ Pass Timeout ]
 crbug.com/237270 http/tests/history/replacestate-post-to-get.html [ Pass Timeout ]
 crbug.com/237270 http/tests/images/jpeg-partial-load.html [ Pass Timeout ]
 crbug.com/237270 http/tests/images/png-partial-load-no-alpha.html [ Pass Timeout ]