Move FileAPI sandboxed filesystem related code from webkit/fileapi to webkit/browser/fileapi

This moves following files from webkit/fileapi to webkit/browser/fileapi:
- obfuscated_file_util*
- sandbox_database_test_helper*
- sandbox_directory_database*
- sandbox_file_stream_writer*
- sandbox_mount_point_provider*
- sandbox_origin_database*
- sandbox_quota_observer*

BUG=239710
[email protected], [email protected], [email protected], [email protected]

Review URL: https://codereview.chromium.org/15442002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@201229 0039d316-1c4b-4281-b951-d872f2087c98
43 files changed