Remove the ENABLE_SQL_DATABASE compile-time flag.

Source/WebCore/Modules/webdatabase/OriginLock.h

 /*
  * Copyright (C) 2013 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. ``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
  * 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. 
  */
 
 #ifndef OriginLock_h
 #define OriginLock_h
 
-#if ENABLE(SQL_DATABASE)
-
 #include "FileSystem.h"
 #include <wtf/ThreadSafeRefCounted.h>
 #include <wtf/text/WTFString.h>
 
 namespace WebCore {
 
 class OriginLock : public ThreadSafeRefCounted<OriginLock> {
     WTF_MAKE_NONCOPYABLE(OriginLock); WTF_MAKE_FAST_ALLOCATED;
 public:
     OriginLock(String originPath);
     ~OriginLock();
 
     void lock();
     void unlock();
 
     static void deleteLockFile(String originPath);
 
 private:
     static String lockFileNameForPath(String originPath);
 
     String m_lockFileName;
     Mutex m_mutex;
 #if USE(FILE_LOCK)
     PlatformFileHandle m_lockHandle;
 #endif
 };
 
 } // namespace WebCore
 
-#endif // ENABLE(SQL_DATABASE)
-
 #endif // OriginLock_h