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diff --git a/WebCore/storage/chromium/DatabaseTrackerChromium.cpp b/WebCore/storage/chromium/DatabaseTrackerChromium.cpp
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+++ b/WebCore/storage/chromium/DatabaseTrackerChromium.cpp
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+/*
+ * Copyright (C) 2009 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "DatabaseTracker.h"
+
+#include "CString.h"
+#include "Database.h"
+#include "DatabaseObserver.h"
+#include "DatabaseThread.h"
+#include "Document.h"
+#include "QuotaTracker.h"
+#include "SecurityOrigin.h"
+#include "SQLiteFileSystem.h"
+#include <wtf/HashSet.h>
+#include <wtf/StdLibExtras.h>
+
+namespace WebCore {
+
+DatabaseTracker& DatabaseTracker::tracker()
+{
+    DEFINE_STATIC_LOCAL(DatabaseTracker, tracker, ());
+    return tracker;
+}
+
+DatabaseTracker::DatabaseTracker()
+{
+    SQLiteFileSystem::registerSQLiteVFS();
+}
+
+bool DatabaseTracker::canEstablishDatabase(Document*, const String&, const String&, unsigned long)
+{
+    // In Chromium, a database can always be established (even though we might not
+    // be able to write anything to it if the quota for this origin was exceeded)
+    return true;
+}
+
+void DatabaseTracker::setDatabaseDetails(SecurityOrigin*, const String&, const String&, unsigned long)
+{
+    // Chromium sets the database details when the database is opened
+}
+
+String DatabaseTracker::fullPathForDatabase(SecurityOrigin* origin, const String& name, bool)
+{
+    return origin->databaseIdentifier() + "/" + name + "#";
+}
+
+void DatabaseTracker::addOpenDatabase(Database* database)
+{
+    ASSERT(isMainThread());
+    DatabaseObserver::databaseOpened(database);
+}
+
+void DatabaseTracker::removeOpenDatabase(Database* database)
+{
+    // FIXME: once we know how to use this information, figure out
+    //        how to get this method called on the main thread
+    //ASSERT(isMainThread());
+    //DatabaseObserver::databaseClosed(database);
+}
+
+unsigned long long DatabaseTracker::getMaxSizeForDatabase(const Database* database)
+{
+    ASSERT(currentThread() == database->document()->databaseThread()->getThreadID());
+    unsigned long long spaceAvailable = 0;
+    unsigned long long databaseSize = 0;
+    QuotaTracker::instance().getDatabaseSizeAndSpaceAvailableToOrigin(
+        database->securityOrigin()->databaseIdentifier(),
+        database->stringIdentifier(), &databaseSize, &spaceAvailable);
+    return databaseSize + spaceAvailable;
+}
+
+}