Remove the chromium code from the filesystem module
https://bugs.webkit.org/show_bug.cgi?id=114002

Reviewed by Ryosuke Niwa.

* Modules/filesystem/DOMFileSystemBase.cpp:
(WebCore::DOMFileSystemBase::createFileSystemURL):
* Modules/filesystem/FileSystemType.h:
* Modules/filesystem/LocalFileSystem.cpp:
* Modules/filesystem/LocalFileSystem.h:
(LocalFileSystem):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@147720 268f45cc-cd09-0410-ab3c-d52691b4dbfc