Git patches created by webkitpy now always have filename prefixes

Git patches created by webkitpy now always have filename prefixes

Previously, git patches created by Git.create_patch were subject to the
diff.noprefix configuration setting that the user may have enabled. When
it was enabled, DiffParser was using an incorrect regex to parse the
filenames. Now, create_patch will always prefix paths with a/ and b/.

BUG=606454
TEST=new unittest, manual

Committed: https://crrev.com/31bcae4933857b32b30c4eaf66ce99031b814a0c
Cr-Commit-Position: refs/heads/master@{#389601}

[watk, 2016-04-25 21:07:41]

watk@chromium.org changed reviewers:
+ tony@chromium.org

[watk, 2016-04-25 21:07:42]

Hi Tony, PTAL

[tony, 2016-04-25 21:15:46]

This looks OK, but I haven't work on Chrome in years.  I defer to Dirk to do the
review.

[watk, 2016-04-25 21:19:18]

watk@chromium.org changed reviewers:
+ dpranke@chromium.org

[watk, 2016-04-25 21:19:19]

Oh oops, thanks for the response.

+dpranke@

[Dirk Pranke, 2016-04-25 21:23:33]

lgtm

[watk, 2016-04-25 21:25:41]

The CQ bit was checked by watk@chromium.org

[commit-bot: I haz the power, 2016-04-25 21:26:17]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1918993003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1918993003/1

[commit-bot: I haz the power, 2016-04-25 23:24:42]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-25 23:26:25]

Description was changed from

==========
Git patches created by webkitpy now always have filename prefixes

Previously, git patches created by Git.create_patch were subject to the
diff.noprefix configuration setting that the user may have enabled. When
it was enabled, DiffParser was using an incorrect regex to parse the
filenames. Now, create_patch will always prefix paths with a/ and b/.

BUG=606454
TEST=new unittest, manual
==========

to

==========
Git patches created by webkitpy now always have filename prefixes

Previously, git patches created by Git.create_patch were subject to the
diff.noprefix configuration setting that the user may have enabled. When
it was enabled, DiffParser was using an incorrect regex to parse the
filenames. Now, create_patch will always prefix paths with a/ and b/.

BUG=606454
TEST=new unittest, manual

Committed: https://crrev.com/31bcae4933857b32b30c4eaf66ce99031b814a0c
Cr-Commit-Position: refs/heads/master@{#389601}
==========

[commit-bot: I haz the power, 2016-04-25 23:26:26]

Patchset 1 (id:??) landed as
https://crrev.com/31bcae4933857b32b30c4eaf66ce99031b814a0c
Cr-Commit-Position: refs/heads/master@{#389601}