[Webkit-unassigned] [Bug 106759] New: StyleResolver::m_rootElementStyle could point to an already deleted RenderStyle

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=106759

           Summary: StyleResolver::m_rootElementStyle could point to an
                    already deleted RenderStyle
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: loislo at chromium.org
                CC: koivisto at iki.fi, apavlov at chromium.org


I landed additional instrumentation for Native Memory snapshot
and found that sometimes native memory profiler traverses through a document
from a previous test which is not yet collected.

StyleResolver from this document has m_rootElementStyle member
which points to an already deleted RenderStyle.

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