Reduce createSameThreadTask usage in modules/

third_party/WebKit/Source/modules/webdatabase/Database.cpp

 /*
  * 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 855 matching lines @@
   SQLTransaction* transaction = SQLTransaction::create(
       this, callback, successCallback, errorCallback, readOnly);
   SQLTransactionBackend* transactionBackend =
       runTransaction(transaction, readOnly, changeVersionData);
   if (!transactionBackend) {
     SQLTransactionErrorCallback* callback = transaction->releaseErrorCallback();
     ASSERT(callback == originalErrorCallback);
     if (callback) {
       std::unique_ptr<SQLErrorData> error = SQLErrorData::create(
           SQLError::kUnknownErr, "database has been closed");
-      getExecutionContext()->postTask(
-          TaskType::DatabaseAccess, BLINK_FROM_HERE,
-          createSameThreadTask(&callTransactionErrorCallback,
-                               wrapPersistent(callback),
-                               WTF::passed(std::move(error))));
+      TaskRunnerHelper::get(TaskType::DatabaseAccess, getExecutionContext())
+          ->postTask(BLINK_FROM_HERE, WTF::bind(&callTransactionErrorCallback,
+                                                wrapPersistent(callback),
+                                                WTF::passed(std::move(error))));
     }
   }
 }
 
 void Database::scheduleTransactionCallback(SQLTransaction* transaction) {
   // The task is constructed in a database thread, and destructed in the
   // context thread.
   getExecutionContext()->postTask(
       TaskType::DatabaseAccess, BLINK_FROM_HERE,
       createCrossThreadTask(&SQLTransaction::performPendingCallback,
@@ skipping 55 matching lines @@
   if (getDatabaseContext()->databaseThread()->isDatabaseThread())
     return m_databaseThreadSecurityOrigin.get();
   return nullptr;
 }
 
 bool Database::opened() {
   return static_cast<bool>(acquireLoad(&m_opened));
 }
 
 }  // namespace blink