https://bugs.webkit.org/show_bug.cgi?id=81411

Reviewed by Adam Barth.

Very basic so far.  The goal is to make it landing smarter
so that users don't have to bother to parse out the ids out of the urls.

* Scripts/webkitpy/common/config/urls.py:
(parse_bug_id):
(parse_attachment_id):
* Scripts/webkitpy/common/config/urls_unittest.py:
(URLsTest.test_parse_bug_id):
(URLsTest):
(URLsTest.test_parse_attachment_id):
* Scripts/webkitpy/tool/commands/download.py:
(ProcessURLsMixin):
(ProcessURLsMixin._fetch_list_of_patches_to_process):
(LandFromURL):
* Scripts/webkitpy/tool/commands/download_unittest.py:
(test_land_from_bug):
(test_land_from_url):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@111095 268f45cc-cd09-0410-ab3c-d52691b4dbfc