[Webkit-unassigned] [Bug 206394] New: [WinCairo][WK2] ASSERT(isUIThread()) is failing since r254723

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=206394

            Bug ID: 206394
           Summary: [WinCairo][WK2] ASSERT(isUIThread()) is failing since
                    r254723
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit2
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com

[WinCairo][WK2] ASSERT(isUIThread()) is failing since r254723

WinCairo port, Debug builds
Since r254723 (Bug 206375)

1. Start MiniBrowser --wk2
2. The assertion fails

Callstack:

> WTF.dll!WTFCrash() Line 305	C++
> WTF.dll!WTFCrashWithInfo(int __formal=147, const char * __formal=0x00007ffe22880c20, const char * __formal=0x00007ffe22880bd0, int __formal=214) Line 619	C++
> WTF.dll!WTF::AtomString::init::__l2::<lambda>() Line 147	C++
> [External Code]	
> WTF.dll!WTF::AtomString::init() Line 155	C++
> WebKit2.dll!WebKit::InitializeWebKit2() Line 43	C++
> WebKit2.dll!API::Object::Object() Line 41	C++
> WebKit2.dll!API::ObjectImpl<85>::ObjectImpl<85>() Line 275	C++
> WebKit2.dll!API::PageConfiguration::PageConfiguration() Line 50	C++
> WebKit2.dll!API::PageConfiguration::create() Line 47	C++
> WebKit2.dll!WKPageConfigurationCreate() Line 45	C++
> MiniBrowserLib.dll!WebKitBrowserWindow::create(BrowserWindowClient & client={...}, HWND__ * mainWnd=0x00000000002f0300, bool __formal=false) Line 112	C++
> [External Code]	
> MiniBrowserLib.dll!MainWindow::init(std::function<WTF::Ref<BrowserWindow,WTF::DumbPtrTraits<BrowserWindow>> __cdecl(BrowserWindowClient &,HWND__ *,bool)> factory={...}, HINSTANCE__ * hInstance=0x00007ffe5f1a0000, bool usesLayeredWebView=false) Line 137	C++
> MiniBrowserLib.dll!wWinMain(HINSTANCE__ * hInstance=0x00007ff763870000, HINSTANCE__ * hPrevInstance=0x0000000000000000, wchar_t * lpstrCmdLine=0x0000023771556920, int nCmdShow=10) Line 90	C++
> MiniBrowserLib.dll!dllLauncherEntryPoint(HINSTANCE__ * hInstance=0x00007ff763870000, HINSTANCE__ * hPrevInstance=0x0000000000000000, wchar_t * lpstrCmdLine=0x0000023771556920, int nCmdShow=10) Line 145	C++
> MiniBrowser.exe!wWinMain(HINSTANCE__ * hInstance=0x00007ff763870000, HINSTANCE__ * hPrevInstance=0x0000000000000000, wchar_t * lpstrCmdLine=0x0000023771556920, int nCmdShow=10) Line 232	C++
> [External Code]

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