--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/platform/PlatformStrategies.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2010 Apple 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:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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"
+
+#if USE(PLATFORM_STRATEGIES)
+
+#include "PlatformStrategies.h"
+
+namespace WebCore {
+
+static PlatformStrategies* s_platformStrategies;
+
+PlatformStrategies* platformStrategies()
+{
+    ASSERT(s_platformStrategies);
+    
+    return s_platformStrategies;
+}
+
+void setPlatformStrategies(PlatformStrategies* platformStrategies)
+{
+    if (!s_platformStrategies) {
+        s_platformStrategies = platformStrategies;
+        return;
+    }
+    
+    // FIXME: This happens when mixing different platform strategies, and we should probably
+    // throw an exception here in release builds.
+    ASSERT(platformStrategies != s_platformStrategies);
+}
+    
+} // namespace WebCore
+
+#endif // USE(PLATFORM_STRATEGIES)