[Webkit-unassigned] [Bug 61157] New: [WK2] Assert in UpdateInfo::encode in debug builds if bitmap handle is Null

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=61157

           Summary: [WK2] Assert in UpdateInfo::encode in debug builds if
                    bitmap handle is Null
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P3
         Component: WebKit2
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ostapenko.viatcheslav at nokia.com


Comment in UpdateInfo.h for "bitmapHandle" notes, that null bitmap handle is normal situation, but it asserts in SharedMemoryUnix.cpp in SharedMemory::Handle::encode .

For example, it happens in DrawingAreaImpl::sendDidUpdateBackingStoreState() if DrawingAreaImpl::sendDidUpdateBackingStoreState() returns false.

At the same time it would be useful to keep assert in SharedMemory::Handle::encode to easier catch error situations.

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