[webkit-reviews] review requested: [Bug 81595] webkitpy: clean up some port._filesystem references to not reference private members : [Attachment 132725] fix nit in write_image_diff_files() as well

[bugzilla-daemon at webkit.org]

Dirk Pranke <dpranke at chromium.org> has asked  for review:
Bug 81595: webkitpy: clean up some port._filesystem references to not reference
private members
https://bugs.webkit.org/show_bug.cgi?id=81595

Attachment 132725: fix nit in write_image_diff_files() as well
https://bugs.webkit.org/attachment.cgi?id=132725&action=review