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ggaren authored
Fixed NULL-dereference crash seen on buildbot. No bug filed because this is a part of <rdar://problem/5241167>. * history/PageCache.h: (WebCore::PageCache::get): NULL-check HistoryItems passed to get() and remove(), to match the old semantics of HashMap. For clarity, ASSERT that add() is not called with NULL arguments. git-svn-id: http://svn.webkit.org/repository/webkit/trunk@24651 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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