Make one able to set the local storage (tracker) database dir's path

Make one able to set the local storage (tracker) database dir's path
https://bugs.webkit.org/show_bug.cgi?id=77006

Patch by Gustavo Lima Chaves <glima@profusion.mobi> on 2012-02-01
Reviewed by Darin Adler.

There are no behavior changes with the diff, so no need for new tests.

* storage/StorageTracker.cpp:
(WebCore::StorageTracker::setDatabaseDirectoryPath):
(WebCore):
(WebCore::StorageTracker::databaseDirectoryPath):
* storage/StorageTracker.h:
(StorageTracker):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@106506 268f45cc-cd09-0410-ab3c-d52691b4dbfc