Port //components/webp_transcode to build with gn.

Port //components/webp_transcode to build with gn.

BUG=459705
Committed: https://crrev.com/f18cfc2c3317e25af0924a7f63dde5dc1e64001e
Cr-Commit-Position: refs/heads/master@{#359859}

[sdefresne, 2015-11-13 15:33:34]

sdefresne@chromium.org changed reviewers:
+ droger@chromium.org

[sdefresne, 2015-11-13 15:33:35]

Please take a look.

[sdefresne, 2015-11-13 15:34:50]

https://codereview.chromium.org/1442043002/diff/1/components/BUILD.gn
File components/BUILD.gn (left):

https://codereview.chromium.org/1442043002/diff/1/components/BUILD.gn#oldcode491
components/BUILD.gn:491: deps += [ "//components/sessions:unit_tests" ]
Note that this was already present in the global deps list and thus useless
here.

[droger, 2015-11-13 16:13:16]

lgtm

[sdefresne, 2015-11-13 16:31:29]

Patchset #1 (id:1) has been deleted

[sdefresne, 2015-11-16 16:27:17]

The CQ bit was checked by sdefresne@chromium.org

[sdefresne, 2015-11-16 16:27:18]

The patchset sent to the CQ was uploaded after l-g-t-m from droger@chromium.org
Link to the patchset: https://codereview.chromium.org/1442043002/#ps20001
(title: "")

[commit-bot: I haz the power, 2015-11-16 16:27:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1442043002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1442043002/20001

[commit-bot: I haz the power, 2015-11-16 17:38:13]

Committed patchset #1 (id:20001)

[commit-bot: I haz the power, 2015-11-16 17:39:50]

Patchset 1 (id:??) landed as
https://crrev.com/f18cfc2c3317e25af0924a7f63dde5dc1e64001e
Cr-Commit-Position: refs/heads/master@{#359859}