Bug 216571 – REGRESSION (r267053): ASSERTION FAILED: videoFullscreenManager->client() == &_videoFullscreenManagerProxyClient in [WKFullScreenWindowController _completedExitFullScreen]

• Status: RESOLVED
• Resolution: FIXED
• Component: Media

[Ryan Haddad]

TestWebKitAPI.WKWebViewCloseAllMediaPresentations.ElementFullscreen is consistently failing an assertion on iOS Simulator:

    TestWebKitAPI.WKWebViewCloseAllMediaPresentations.ElementFullscreen
        2020-09-15 10:13:33.563 TestWebKitAPI[49315:204447194] <CATransformLayer: 0x7f9cedc62080> - changing property masksToBounds in transform-only layer, will have no effect
        ASSERTION FAILED: videoFullscreenManager->client() == &_videoFullscreenManagerProxyClient
        /Volumes/Data/slave/ios-simulator-13-debug/build/Source/WebKit/UIProcess/ios/fullscreen/WKFullScreenWindowControllerIOS.mm(834) : -[WKFullScreenWindowController _completedExitFullScreen]
        1   0x10de9ce69 WTFCrash
        2   0x11b9ff9ab WTFCrashWithInfo(int, char const*, char const*, int)
        3   0x11cb1413c -[WKFullScreenWindowController _completedExitFullScreen]
        4   0x11cb155a5 -[WKFullScreenWindowController _exitFullscreenImmediately]
        5   0x11cb14724 -[WKFullScreenWindowController close]
        6   0x11c5f8d24 -[WKWebView(FullScreenAPI_Private) closeFullScreenWindowController]
        7   0x11ca2b1fe WebKit::PageClientImpl::closeFullScreenManager()
        8   0x11c80253d WebKit::WebFullScreenManagerProxy::close()
        9   0x11c5032ea -[WKWebView(WKPrivate) _closeAllMediaPresentations]
        10  0x10c7aa859 WKWebViewCloseAllMediaPresentations_ElementFullscreen_Test::TestBody()
        11  0x10c840d04 void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*)
        12  0x10c81e04b void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*)
        13  0x10c81df86 testing::Test::Run()
        14  0x10c81edaa testing::TestInfo::Run()
        15  0x10c81fc74 testing::TestCase::Run()
        16  0x10c82aa88 testing::internal::UnitTestImpl::RunAllTests()
        17  0x10c845134 bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*)
        18  0x10c82a59b bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*)
        19  0x10c82a46d testing::UnitTest::Run()
        20  0x10c672781 RUN_ALL_TESTS()
        21  0x10c672712 TestWebKitAPI::TestsController::run(int, char**)
        22  0x10c7f101b main
        23  0x11953410d start
        Child process terminated with signal 11: Segmentation fault

https://results.webkit.org/?suite=api-tests&test=TestWebKitAPI.WKWebViewCloseAllMediaPresentations.ElementFullscreen

[Radar WebKit Bug Importer]

<rdar://problem/68931973>

[Peng Liu]

Created attachment 408844 [details]
Patch

[EWS]

Committed r267110: <https://trac.webkit.org/changeset/267110>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 408844 [details].