2009-02-05  Maciej Stachowiak  <mjs@apple.com> and Brady Eidson  <beidson@apple.com>

        Reviewed by Dan Bernstein and Geoff Garen.

        - WebCore code to track per-day and per-week visit counts in history

        The basic idea is as follows: we track daily visits for up to 13
        days, and weekly visits for up to 5 weeks past the end of the
        current daily visits. As soon as the number of daily counts goes
        over 13, we squish them down into weeks, and then prune the excess weeks.

        * history/HistoryItem.cpp:
        (WebCore::HistoryItem::HistoryItem): Remove bogus whitespace.
        (WebCore::timeToDay): Helper function: convert time to days from the epoch.
        (WebCore::HistoryItem::padDailyCountsForNewVisit): Insert 0 counts if
        a site is visited after a span of days.
        (WebCore::HistoryItem::collapseDailyVisitsToWeekly): Core day/week upgrade
        algorithm as described above.
        (WebCore::HistoryItem::recordVisitAtTime): Use above helpers to record all
        info about a visit to this history item.
        (WebCore::HistoryItem::setLastVisitedTime): Updated.
        (WebCore::HistoryItem::visited): Updated.
        (WebCore::HistoryItem::recordInitialVisit): New function to
        handle recording data about the very first visit, replacing the
        prior practice of explicitly setting visit count to 1.
        (WebCore::HistoryItem::adoptVisitCounts): Take ownership of
        daily and weekly visit count vectors.
        (WebCore::HistoryItem::mergeAutoCompleteHints): Added a comment
        noting that this function doesn't work properly now (though
        this shouldn't matter much in practice.)
        * history/HistoryItem.h:
        (WebCore::HistoryItem::dailyVisitCounts): Accessor for daily counts.
        (WebCore::HistoryItem::weeklyVisitCounts): Ditto for weekly counts.
        * WebCore.base.exp: Add new symbols and sort.

WebKit/win:

2009-02-05  Maciej Stachowiak  <mjs@apple.com> and Brady Eidson  <beidson@apple.com>

        Reviewed by Dan Bernstein and Geoff Garen..

        - WebKit code to track per-day and per-week visit counts in history

        For now this data is only exposed via SPI for performance reasons.

        * Interfaces/IWebHistoryItemPrivate.idl: Added new interface.
        * WebHistory.cpp:
        (WebHistory::visitedURL): Use new recordInitialVisit method.
        * WebHistoryItem.cpp:
        (WebHistoryItem::initFromDictionaryRepresentation): Add parsing support
        for new data.
        (WebHistoryItem::dictionaryRepresentation): Add saving support for
        new data.
        (WebHistoryItem::getDailyVisitCounts): SPI accessor.
        (WebHistoryItem::getWeeklyVisitCounts): SPI accessor.
        (WebHistoryItem::recordInitialVisit): Tell WebCore to record an initial visit.
        * WebHistoryItem.h:



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@40712 268f45cc-cd09-0410-ab3c-d52691b4dbfc