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Update the loaded index if entries are removed from history, so we don't crash with an invalid entry index. Bug 320488, patch by marria@gmail.com, r=biesi sr=darin a=dveditz

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git-svn-id: svn://10.0.0.236/branches/MOZILLA_1_8_BRANCH@187345 18797224-902f-48f8-a5cc-f745e15eee43
This commit is contained in:
bryner%brianryner.com
2006-01-11 19:45:45 +00:00
parent d9a0079fec
commit b2afe804df
1 changed files with 6 additions and 0 deletions
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6
mozilla/docshell/base/nsDocShell.cpp
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@@ -1727,7 +1727,13 @@ nsDocShell::GetLoadedTransIndex(PRInt32 *aLoadedTransIndex)
NS_IMETHODIMP
nsDocShell::HistoryPurged(PRInt32 aNumEntries)
{
// These indices are used for fastback cache eviction, to determine
// which session history entries are candidates for content viewer
// eviction. We need to adjust by the number of entries that we
// just purged from history, so that we look at the right session history
// entries during eviction.
mPreviousTransIndex = PR_MAX(-1, mPreviousTransIndex - aNumEntries);
mLoadedTransIndex = PR_MAX(0, mLoadedTransIndex - aNumEntries);
PRInt32 count = mChildList.Count();
for (PRInt32 i = 0; i < count; ++i) {