[Webkit-unassigned] [Bug 185505] New: REGRESSION(r231622) [Win] Crashes for null dereference of prefsPrivate in WebView::notifyPreferencesChanged

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=185505

            Bug ID: 185505
           Summary: REGRESSION(r231622) [Win] Crashes for null dereference
                    of prefsPrivate in WebView::notifyPreferencesChanged
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: Hironori.Fujii at sony.com

REGRESSION(r231622) [Win] Crashes for null dereference of prefsPrivate in WebView::notifyPreferencesChanged

Windows port crashes soon since Bug 184996.

> WebKit.dll!WebView::notifyPreferencesChanged(IWebNotification * notification) Line 5201	C++
> WebKit.dll!WebView::onNotify(IWebNotification * notification) Line 5072	C++
> WebKit.dll!WebNotificationCenter::postNotificationInternal(IWebNotification * notification, wchar_t * notificationName, IUnknown * anObject) Line 131	C++
> WebKit.dll!WebNotificationCenter::postNotificationName(wchar_t * notificationName, IUnknown * anObject, IPropertyBag * userInfo) Line 181	C++
> WebKit.dll!WebPreferences::postPreferencesChangesNotification() Line 148	C++
> WebKit.dll!WebView::initWithFrame(tagRECT frame, wchar_t * frameName, wchar_t * groupName) Line 3164	C++
> MiniBrowserLib.dll!MiniBrowser::prepareViews(HWND__ * mainWnd, const tagRECT & clientRect, HWND__ * & viewHwnd) Line 183	C++
> MiniBrowserLib.dll!MiniBrowser::MiniBrowser(HWND__ * mainWnd, HWND__ * urlBarWnd, bool useLayeredWebView, bool pageLoadTesting) Line 140	C++
> [External Code]	
> MiniBrowserLib.dll!BrowserWindow::{ctor}::__l2::<lambda>(HWND__ * mainWnd, HWND__ * urlBarWnd, bool useLayeredWebView, bool pageLoadTesting) Line 111	C++
> MiniBrowserLib.dll!std::unique_ptr<ContentWindow,std::default_delete<ContentWindow> > <lambda>(HWND__ *, HWND__ *, bool, bool)::<lambda_invoker_cdecl>(HWND__ * mainWnd, HWND__ * urlBarWnd, bool useLayeredWebView, bool pageLoadTesting) Line 112	C++
> MiniBrowserLib.dll!BrowserWindow::BrowserWindow(int nCmdShow, bool usesLayeredWebView, bool pageLoadTesting, _bstr_t requestedURL, bool useWK2) Line 120	C++
> MiniBrowserLib.dll!wWinMain(HINSTANCE__ * hInstance, HINSTANCE__ * hPrevInstance, wchar_t * lpstrCmdLine, int nCmdShow) Line 75	C++
> MiniBrowserLib.dll!dllLauncherEntryPoint(HINSTANCE__ * hInstance, HINSTANCE__ * hPrevInstance, wchar_t * lpstrCmdLine, int nCmdShow) Line 109	C++
> MiniBrowser.exe!wWinMain(HINSTANCE__ * hInstance, HINSTANCE__ * hPrevInstance, wchar_t * lpstrCmdLine, int nCmdShow) Line 251	C++
> [External Code]

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