WebCore:

WebCore:

        Reviewed by Kevin Decker (Sarge)

        <rdar://problem/4678414> - New IconDB needs to delete icons when asked
        <rdar://problem/4707718> - If user's Icon directory is unwritable, Safari will crash at startup

        * bridge/mac/WebCoreIconDatabaseBridge.h:
        * bridge/mac/WebCoreIconDatabaseBridge.mm:
        (-[WebCoreIconDatabaseBridge removeAllIcons]):  Added
        * loader/icon/IconDatabase.cpp:
        (WebCore::IconDatabase::open): If DB file is not writeable, create an in-memory DB for this session
        (WebCore::IconDatabase::close): Use new deleteAllPreparedStatements()
        (WebCore::IconDatabase::removeAllIcons): Actually implemented
        (WebCore::IconDatabase::deleteAllPreparedStatements): Added for convinience/consistency
        (WebCore::IconDatabase::setPrivateBrowsingEnabled): Use new SQLDatabase::clearAllTables()
        * loader/icon/IconDatabase.h:
        * loader/icon/SQLDatabase.cpp:
        (WebCore::SQLDatabase::clearAllTables): Moved this from IconDatabase as it actually belongs here
        (WebCore::SQLDatabase::vacuum): Added
        * loader/icon/SQLDatabase.h:
        (WebCore::SQLDatabase::path): changed name from getPath()

WebKit:

        Reviewed by Kevin Decker (Sarge)

        <rdar://problem/4678414> - New IconDB needs to delete icons when asked

        * Misc/WebIconDatabase.m:
        (-[WebIconDatabase removeAllIcons]): Call through to WebCore to remove icons, then send notification

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@16111 268f45cc-cd09-0410-ab3c-d52691b4dbfc