For local review prior to sending to webkit

loader/appcache2/ApplicationCacheBridge.cpp

+/*
+ * 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 "ApplicationCacheBridge.h"
+
+#if ENABLE(APPLICATION_CACHE)
+
+#include "MainThread.h"
+#include "ApplicationCacheBridgeImpl.h"
+
+namespace WebCore {
+
+// static 
+ApplicationCacheBridge* ApplicationCacheBridge::m_instance;
+
+// static
+void ApplicationCacheBridge::setInstance(ApplicationCacheBridge* bridge)
+{
+    ASSERT(!m_instance);
+    ASSERT(isMainThread()); 
+    m_instance = bridge;
+}
+
+// static
+ApplicationCacheBridge* ApplicationCacheBridge::instance()
+{
+    if (!m_instance)
+        ApplicationCacheBridgeImpl::startup();
+    return m_instance;
+}
+
+}  // WebCore
+
+#endif  // ENABLE(APPLICATION_CACHE)