[Webkit-unassigned] [Bug 204977] REGRESSION(r253231): Debug assertion failures under ~WebDeviceOrientationUpdateProvider(Proxy)
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Sat Dec 7 10:51:04 PST 2019
https://bugs.webkit.org/show_bug.cgi?id=204977
--- Comment #8 from Per Arne Vollan <pvollan at apple.com> ---
(In reply to David Quesada from comment #5)
> (In reply to Per Arne Vollan from comment #4)
> > Comment on attachment 385085 [details]
> > Patch v2
> >
> > View in context:
> > https://bugs.webkit.org/attachment.cgi?id=385085&action=review
> >
> > Thanks for fixing this! R=me.
> >
> > > Source/WebKit/WebProcess/WebCoreSupport/WebDeviceOrientationUpdateProvider.cpp:49
> > > + WebProcess::singleton().removeMessageReceiver(Messages::WebDeviceOrientationUpdateProvider::messageReceiverName(), m_pageIdentifier);
> >
> > The WebPage is already being stored, could you call m_page.identifier()
> > instead?
> >
> > > Source/WebKit/WebProcess/WebCoreSupport/WebDeviceOrientationUpdateProvider.h:57
> > > + WebCore::PageIdentifier m_pageIdentifier;
> >
> > Is this member needed, if you get the identifier from m_page?
>
> I originally added ASSERT(m_page) and used m_page->identifier() in the
> destructor, but m_page ended up being null at this point in some tests. It
> seemed reasonable to save a copy of the page ID, given that the reference to
> the page is weak and WebDeviceOrientationUpdateProvider already has a few
> null-checks for m_page.
Makes sense, great work on fixing this!
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