Purge PassRefPtr in Modules/webdatabase

Purge PassRefPtr in Modules/webdatabase
https://bugs.webkit.org/show_bug.cgi?id=159255

Reviewed by Benjamin Poulain.

As a step to remove PassRefPtr use, this patch cleans it up in Modules/webdatabase.

Additionally unnecessary spaces and tabs are removed too.

* Modules/webdatabase/ChangeVersionWrapper.cpp:
* Modules/webdatabase/DOMWindowWebDatabase.h:
* Modules/webdatabase/Database.cpp:
(WebCore::Database::Database):
(WebCore::Database::~Database):
(WebCore::Database::scheduleTransaction):
(WebCore::Database::runTransaction):
* Modules/webdatabase/Database.h:
* Modules/webdatabase/DatabaseAuthorizer.cpp:
(WebCore::DatabaseAuthorizer::allowRead):
* Modules/webdatabase/DatabaseManager.cpp:
(WebCore::DatabaseManager::openDatabase):
(WebCore::DatabaseManager::fullPathForDatabase):
(WebCore::DatabaseManager::detailsForNameAndOrigin):
* Modules/webdatabase/DatabaseManager.h:
* Modules/webdatabase/DatabaseTask.cpp:
(WebCore::DatabaseTransactionTask::DatabaseTransactionTask):
* Modules/webdatabase/DatabaseTask.h:
* Modules/webdatabase/SQLCallbackWrapper.h:
(WebCore::SQLCallbackWrapper::SQLCallbackWrapper):
* Modules/webdatabase/SQLResultSetRowList.h:
* Modules/webdatabase/SQLStatement.cpp:
(WebCore::SQLStatement::SQLStatement):
(WebCore::SQLStatement::sqlError):
(WebCore::SQLStatement::sqlResultSet):
* Modules/webdatabase/SQLStatement.h:
* Modules/webdatabase/SQLTransaction.h:
* Modules/webdatabase/SQLTransactionBackend.cpp:
(WebCore::SQLTransactionBackend::create):
(WebCore::SQLTransactionBackend::SQLTransactionBackend):
(WebCore::SQLTransactionBackend::transactionError):
* Modules/webdatabase/SQLTransactionBackend.h:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@203146 268f45cc-cd09-0410-ab3c-d52691b4dbfc