Remove worker support of Web SQL Database.

Source/modules/webdatabase/SQLTransactionBackendSync.h

Index: Source/modules/webdatabase/SQLTransactionBackendSync.h
diff --git a/Source/modules/webdatabase/SQLTransactionBackendSync.h b/Source/modules/webdatabase/SQLTransactionBackendSync.h
deleted file mode 100644
index 09ac7176d0076d70ae7841281e785a20d4fb3419..0000000000000000000000000000000000000000
--- a/Source/modules/webdatabase/SQLTransactionBackendSync.h
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * Copyright (C) 2010 Google Inc. All rights reserved.
- * 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:
- *
- *     * 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.
- */
-
-#ifndef SQLTransactionBackendSync_h
-#define SQLTransactionBackendSync_h
-
-#include "modules/webdatabase/DatabaseBasicTypes.h"
-#include "platform/heap/Handle.h"
-#include "wtf/Forward.h"
-#include "wtf/RefCounted.h"
-#include "wtf/Vector.h"
-#include "wtf/text/WTFString.h"
-
-namespace blink {
-
-class DatabaseSync;
-class SQLResultSet;
-class SQLTransactionClient;
-class SQLTransactionSyncCallback;
-class SQLValue;
-class SQLiteTransaction;
-class ExceptionState;
-
-// Instances of this class should be created and used only on the worker's context thread.
-class SQLTransactionBackendSync : public RefCountedWillBeGarbageCollectedFinalized<SQLTransactionBackendSync> {
-public:
-    virtual ~SQLTransactionBackendSync();
-    void trace(Visitor*);
-
-    PassRefPtrWillBeRawPtr<SQLResultSet> executeSQL(const String& sqlStatement, const Vector<SQLValue>& arguments, ExceptionState&);
-
-    DatabaseSync* database() { return m_database.get(); }
-
-    void begin(ExceptionState&);
-    void execute(ExceptionState&);
-    void commit(ExceptionState&);
-    void rollback();
-    void rollbackIfInProgress();
-
-private:
-    SQLTransactionBackendSync(DatabaseSync*, PassOwnPtrWillBeRawPtr<SQLTransactionSyncCallback>, bool readOnly);
-
-    RefPtrWillBeMember<DatabaseSync> m_database;
-    OwnPtrWillBeMember<SQLTransactionSyncCallback> m_callback;
-    bool m_readOnly;
-    bool m_hasVersionMismatch;
-
-    bool m_modifiedDatabase;
-    OwnPtr<SQLTransactionClient> m_transactionClient;
-    OwnPtr<SQLiteTransaction> m_sqliteTransaction;
-
-    friend class SQLTransactionSync; // FIXME: Remove this once the front-end has been properly isolated.
-};
-
-} // namespace blink
-
-#endif // SQLTransactionBackendSync_h