Bug 191821

Summary: Composited and tiled layers fail to update on scrolling in WebView
Product: WebKit Reporter: Simon Fraser (smfr) <simon.fraser>
Component: New BugsAssignee: Simon Fraser (smfr) <simon.fraser>
Status: RESOLVED FIXED    
Severity: Normal CC: commit-queue, ews-watchlist, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Patch
none
Archive of layout-test-results from ews121 for ios-simulator-wk2
none
Patch zalan: review+

Description Simon Fraser (smfr) 2018-11-17 20:54:48 PST
Composited and tiled layers fail to update on scrolling in WebView
Comment 1 Simon Fraser (smfr) 2018-11-17 21:06:15 PST
Created attachment 355227 [details]
Patch
Comment 2 Simon Fraser (smfr) 2018-11-17 21:06:40 PST
<rdar://problem/46009272>
Comment 3 EWS Watchlist 2018-11-17 23:11:32 PST
Comment on attachment 355227 [details]
Patch

Attachment 355227 [details] did not pass ios-sim-ews (ios-simulator-wk2):
Output: https://webkit-queues.webkit.org/results/10053576

New failing tests:
compositing/backing/backing-store-attachment-scroll.html
compositing/tiling/tile-coverage-on-scroll.html
Comment 4 EWS Watchlist 2018-11-17 23:11:34 PST
Created attachment 355230 [details]
Archive of layout-test-results from ews121 for ios-simulator-wk2

The attached test failures were seen while running run-webkit-tests on the ios-sim-ews.
Bot: ews121  Port: ios-simulator-wk2  Platform: Mac OS X 10.13.6
Comment 5 Simon Fraser (smfr) 2018-11-27 12:28:21 PST
Created attachment 355761 [details]
Patch
Comment 6 zalan 2018-11-27 12:39:35 PST
Comment on attachment 355761 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=355761&action=review

> Source/WebCore/page/FrameView.cpp:2468
> +    if (RenderView* renderView = this->renderView()) {

auto pls.
Comment 7 Simon Fraser (smfr) 2018-11-27 13:57:41 PST
https://trac.webkit.org/changeset/238575/webkit