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/241869 [ Debug ] css3/flexbox/multiline-justify-content.html [ Pass Timeout ]
 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 1316 matching lines @@
 webkit.org/b/109312 virtual/gpu/fast/canvas/canvas-drawImage-shadow.html [ Pass Failure ]
 
 # ENABLE_ENCRYPTED_MEDIA_V2 is not enabled.
 crbug.com/224791 media/encrypted-media/encrypted-media-v2-events.html [ Skip ]
 crbug.com/224791 media/encrypted-media/encrypted-media-v2-syntax.html [ Skip ]
 
 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 ]
 
-# 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 [ Pass 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 [ Pass 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 ]
-
 # Tests failing since applyPageScaleFactorInCompositor enabled
 crbug.com/225184 fast/repaint/relayout-fixed-position-after-scale.html [ ImageOnlyFailure ]
 crbug.com/225184 inspector/elements/highlight-node-scaled.html [ Failure Timeout ]
 crbug.com/225184 svg/as-image/image-respects-pageScaleFactor.html [ Failure ImageOnlyFailure ]
 crbug.com/225184 [ Mac ] fast/text/descent-clip-in-scaled-page.html [ ImageOnlyFailure ]
 
 # Pixel tests for RTL iframe scrollbar is erroneous. Cannot observe on actual browser.
 crbug.com/227473 [ Debug ] virtual/softwarecompositing/rtl/rtl-iframe-absolute-overflow-scrolled.html [ Pass Failure ]
 crbug.com/227473 [ Debug ] compositing/rtl/rtl-iframe-absolute-overflow-scrolled.html [ Pass Failure ]
 crbug.com/192172 [ Debug ] compositing/rtl/rtl-iframe-absolute-overflow.html [ Pass Failure ]
@@ skipping 265 matching lines @@
 # IDB backend migration fixes this test; will need rebasing after that lands.
 crbug.com/234278 storage/indexeddb/transaction-error.html [ Pass Failure ]
 
 crbug.com/241481 http/tests/w3c/webperf/approved/navigation-timing/html/test_timing_attributes_order.html [ Pass Failure ]
 
 crbug.com/241577 http/tests/inspector/compiler-script-mapping.html [ Pass Failure ]
 
 crbug.com/241665 fast/events/touch/emulate-touch-events.html [ Pass Failure ]
 
 Bug(trchen) virtual/gpu/compositedscrolling/scrollbars/custom-scrollbar-with-incomplete-style.html [ Pass ImageOnlyFailure ]