Replace createCrossThreadTask with crossThreadBind in webdatabase

third_party/WebKit/Source/modules/webdatabase/Database.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
@@ skipping 97 matching lines @@
 
   Vector<String> tableNames();
   void scheduleTransactionCallback(SQLTransaction*);
   void closeImmediately();
   void closeDatabase();
 
   DatabaseContext* getDatabaseContext() const {
     return m_databaseContext.get();
   }
   ExecutionContext* getExecutionContext() const;
+  WebTaskRunner* getDatabaseTaskRunner() const;
 
  private:
   class DatabaseOpenTask;
   class DatabaseCloseTask;
   class DatabaseTransactionTask;
   class DatabaseTableNamesTask;
 
   Database(DatabaseContext*,
            const String& name,
            const String& expectedVersion,
@@ skipping 41 matching lines @@
   void logErrorMessage(const String&);
   static const char* databaseInfoTableName();
   String databaseDebugName() const {
     return m_contextThreadSecurityOrigin->toString() + "::" + m_name;
   }
 
   RefPtr<SecurityOrigin> m_contextThreadSecurityOrigin;
   RefPtr<SecurityOrigin> m_databaseThreadSecurityOrigin;
   Member<DatabaseContext>
       m_databaseContext;  // Associated with m_executionContext.
+  // TaskRunnerHelper::get is not thread-safe, so we save WebTaskRunner for
+  // DatabaseContext for later use as the constructor runs in the main thread.

[nhiroki, 2017/03/09 09:07:39]

s/DatabaseContext/TaskType::DatabaseAccess/ ?

[yuryu, 2017/03/10 06:00:57]

Done.

+  RefPtr<WebTaskRunner> m_databaseTaskRunner;
 
   String m_name;
   String m_expectedVersion;
   String m_displayName;
   unsigned long m_estimatedSize;
   String m_filename;
 
   DatabaseGuid m_guid;
   int m_opened;
   bool m_new;
@@ skipping 10 matching lines @@
   friend class ChangeVersionWrapper;
   friend class DatabaseManager;
   friend class SQLStatementBackend;
   friend class SQLTransaction;
   friend class SQLTransactionBackend;
 };
 
 }  // namespace blink
 
 #endif  // Database_h