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sfalken@apple.com authored
https://bugs.webkit.org/show_bug.cgi?id=38245 <rdar://problem/7916101> REGRESSION (r58067): All loaded pages fail to display after running iBench HTML test (intermittent) Reviewed by Maciej Stachowiak. * WebView.cpp: (WebView::updateBackingStore): Add null check for m_backingStoreDirtyRegion. git-svn-id: http://svn.webkit.org/repository/webkit/trunk@58387 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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