clear databases before running read-transactions-running-concurrently test
https://bugs.webkit.org/show_bug.cgi?id=110144

Reviewed by Nico Weber.

Otherwise, we might not have enough quota when running this tests and lots
of databases from previous tests are hanging around.

* storage/websql/read-transactions-running-concurrently.html:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@143261 268f45cc-cd09-0410-ab3c-d52691b4dbfc
StorageManager message handlers should take the connection
https://bugs.webkit.org/show_bug.cgi?id=110151

Reviewed by Andreas Kling.

* Platform/CoreIPC/HandleMessage.h:
(CoreIPC):
(CoreIPC::callMemberFunction):
(CoreIPC::handleMessage):
* Scripts/webkit2/messages.py:
(sync_message_statement):
(generate_message_handler):
* UIProcess/Storage/StorageManager.cpp:
(WebKit::StorageManager::createStorageArea):
(WebKit::StorageManager::destroyStorageArea):
(WebKit::StorageManager::getValues):
* UIProcess/Storage/StorageManager.h:
(StorageManager):
* UIProcess/Storage/StorageManager.messages.in:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@143262 268f45cc-cd09-0410-ab3c-d52691b4dbfc