Add requests to third party.

Add requests to third party.

Requests is already mirrored on chromium.
It has an Appache 2.0 license.
It is required for the appurify python api found in thirdparty to work.

BUG=439624
Committed: https://crrev.com/7b35188a8c7f9e5336b30afc453e4d9b3b65e62e
Cr-Commit-Position: refs/heads/master@{#307993}

[rnephew (Reviews Here), 2014-12-05 23:22:51]

rnephew@chromium.org changed reviewers:
+ cpu@chromium.org, jbudorick@chromium.org, klundberg@chromium.org,
open-source-third-party-reviews@google.com, security@chromium.org

[cpu_(ooo_6.6-7.5), 2014-12-08 21:09:20]

please follow 
http://www.chromium.org/developers/adding-3rd-party-libraries

ping me back when you get the other two reviews as stated in that document.

[Daniel Berlin, 2014-12-09 01:15:37]

dannyb@google.com changed reviewers:
+ dannyb@google.com

[Daniel Berlin, 2014-12-09 01:15:38]

LGTM for OSTPR

[jschuh, 2014-12-11 18:48:52]

lgtm for security since it's test-only

[jbudorick, 2014-12-11 18:59:44]

https://codereview.chromium.org/782083002/diff/1/DEPS
File DEPS (right):

https://codereview.chromium.org/782083002/diff/1/DEPS#newcode499
DEPS:499: Var('chromium_git') + '/external/github.com/kennethreitz/requests.git'
+ '@' + '4e90aa7bd0c8051fe4894971fb77c72a26a92728',
Roll this back to the 2.5.0 tag.

[rnephew (Reviews Here), 2014-12-11 19:02:41]

https://codereview.chromium.org/782083002/diff/1/DEPS
File DEPS (right):

https://codereview.chromium.org/782083002/diff/1/DEPS#newcode499
DEPS:499: Var('chromium_git') + '/external/github.com/kennethreitz/requests.git'
+ '@' + '4e90aa7bd0c8051fe4894971fb77c72a26a92728',
On 2014/12/11 18:59:44, jbudorick wrote:
> Roll this back to the 2.5.0 tag.

Done.

[jbudorick, 2014-12-11 19:15:33]

lgtm

[cpu_(ooo_6.6-7.5), 2014-12-11 20:12:46]

lgtm

[rnephew (Reviews Here), 2014-12-11 20:21:23]

The CQ bit was checked by rnephew@chromium.org

[commit-bot: I haz the power, 2014-12-11 20:22:47]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/782083002/40001

[commit-bot: I haz the power, 2014-12-11 23:11:34]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2014-12-11 23:13:12]

Patchset 3 (id:??) landed as
https://crrev.com/7b35188a8c7f9e5336b30afc453e4d9b3b65e62e
Cr-Commit-Position: refs/heads/master@{#307993}