Remove worker support of Web SQL Database.

Source/modules/webdatabase/DatabaseSync.h

Index: Source/modules/webdatabase/DatabaseSync.h
diff --git a/Source/modules/webdatabase/DatabaseSync.h b/Source/modules/webdatabase/DatabaseSync.h
deleted file mode 100644
index 2cd8157d6faca3011fa2bd79d24900dc71ee404a..0000000000000000000000000000000000000000
--- a/Source/modules/webdatabase/DatabaseSync.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Copyright (C) 2010 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.
- */
-
-#ifndef DatabaseSync_h
-#define DatabaseSync_h
-
-#include "bindings/core/v8/ScriptWrappable.h"
-#include "modules/webdatabase/DatabaseBackendSync.h"
-#include "modules/webdatabase/DatabaseBase.h"
-#include "modules/webdatabase/DatabaseBasicTypes.h"
-#include "platform/heap/Handle.h"
-#include "wtf/Forward.h"
-#include "wtf/text/WTFString.h"
-
-namespace blink {
-
-class DatabaseCallback;
-class ExceptionState;
-class SQLTransactionSync;
-class SQLTransactionSyncCallback;
-
-// Instances of this class should be created and used only on the worker's context thread.
-class DatabaseSync FINAL : public DatabaseBackendSync, public DatabaseBase, public ScriptWrappable {
-    DEFINE_WRAPPERTYPEINFO();
-public:
-    virtual ~DatabaseSync();
-    virtual void trace(Visitor*) OVERRIDE;
-
-    void changeVersion(const String& oldVersion, const String& newVersion, PassOwnPtrWillBeRawPtr<SQLTransactionSyncCallback>, ExceptionState&);
-    void transaction(PassOwnPtrWillBeRawPtr<SQLTransactionSyncCallback>, ExceptionState&);
-    void readTransaction(PassOwnPtrWillBeRawPtr<SQLTransactionSyncCallback>, ExceptionState&);
-
-    virtual void closeImmediately() OVERRIDE;
-    void observeTransaction(SQLTransactionSync&);
-
-    const String& lastErrorMessage() const { return m_lastErrorMessage; }
-    void setLastErrorMessage(const String& message) { m_lastErrorMessage = message; }
-    void setLastErrorMessage(const char* message, int sqliteCode, const char* sqliteMessage)
-    {
-        setLastErrorMessage(String::format("%s (%d, %s)", message, sqliteCode, sqliteMessage));
-    }
-
-private:
-    DatabaseSync(DatabaseContext*, const String& name,
-        const String& expectedVersion, const String& displayName, unsigned long estimatedSize);
-    static PassRefPtrWillBeRawPtr<DatabaseSync> create(ExecutionContext*, PassRefPtrWillBeRawPtr<DatabaseBackendBase>);
-
-    void runTransaction(PassOwnPtrWillBeRawPtr<SQLTransactionSyncCallback>, bool readOnly, ExceptionState&);
-    void rollbackTransaction(SQLTransactionSync&);
-#if ENABLE(OILPAN)
-    class TransactionObserver {
-    public:
-        explicit TransactionObserver(SQLTransactionSync& transaction) : m_transaction(transaction) { }
-        ~TransactionObserver();
-
-    private:
-        SQLTransactionSync& m_transaction;
-    };
-
-    // Need a Persistent field because a HeapHashMap entry should be removed
-    // just after a SQLTransactionSync becomes untraceable. If this field was a
-    // Member<>, we could not assume the destruction order of DatabaseSync,
-    // SQLTransactionSync, and the field. We can not make the field static
-    // because multiple worker threads create SQLTransactionSync.
-    GC_PLUGIN_IGNORE("http://crbug.com/353083")
-    PersistentHeapHashMap<WeakMember<SQLTransactionSync>, OwnPtr<TransactionObserver> > m_observers;
-#endif
-
-    String m_lastErrorMessage;
-
-    friend class DatabaseManager;
-    friend class DatabaseServer; // FIXME: remove this when the backend has been split out.
-};
-
-} // namespace blink
-
-#endif // DatabaseSync_h