Merge 190021 "Web SQL: Termiante database thread before finalizi..."

Source/modules/webdatabase/DatabaseManager.h

 /*
  * Copyright (C) 2012 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
@@ skipping 28 matching lines @@
 class DatabaseCallback;
 class DatabaseContext;
 class ExceptionState;
 class SecurityOrigin;
 class ExecutionContext;
 
 class DatabaseManager {
     WTF_MAKE_NONCOPYABLE(DatabaseManager); WTF_MAKE_FAST_ALLOCATED;
 public:
     static DatabaseManager& manager();
+    static void terminateDatabaseThread();
 
     // These 2 methods are for DatabaseContext (un)registration, and should only
     // be called by the DatabaseContext constructor and destructor.
     void registerDatabaseContext(DatabaseContext*);
     void unregisterDatabaseContext(DatabaseContext*);
 
 #if ENABLE(ASSERT)
     void didConstructDatabaseContext();
     void didDestructDatabaseContext();
 #else
@@ skipping 28 matching lines @@
     ContextMap m_contextMap;
 #if ENABLE(ASSERT)
     int m_databaseContextRegisteredCount;
     int m_databaseContextInstanceCount;
 #endif
 };
 
 } // namespace blink
 
 #endif // DatabaseManager_h