Pull buildtools to get GN 338735.

Pull buildtools to get GN 338735.

Fix duplicate source file in removing/base/BUILD.gn

TBR=dpranke@chromium.org

Committed: https://crrev.com/abc0faae61c7b13c9e98a28f183b688d09142795
Cr-Commit-Position: refs/heads/master@{#339182}

[brettw, 2015-07-16 22:32:17]

The CQ bit was checked by brettw@chromium.org to run a CQ dry run

[brettw, 2015-07-16 22:32:25]

The CQ bit was unchecked by brettw@chromium.org

[brettw, 2015-07-16 22:32:43]

The CQ bit was checked by brettw@chromium.org to run a CQ dry run

[Dirk Pranke, 2015-07-16 22:34:03]

lgtm

[commit-bot: I haz the power, 2015-07-16 22:35:43]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1242523003/1

[brettw, 2015-07-16 22:44:21]

The CQ bit was checked by brettw@chromium.org

[brettw, 2015-07-16 22:44:21]

The patchset sent to the CQ was uploaded after l-g-t-m from dpranke@chromium.org
Link to the patchset: https://codereview.chromium.org/1242523003/#ps20001
(title: " ")

[commit-bot: I haz the power, 2015-07-16 22:47:01]

Dry run: Try jobs failed on following builders:
  win8_chromium_ng on tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win8_chromium_ng/...)

[commit-bot: I haz the power, 2015-07-16 22:47:26]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1242523003/20001

[commit-bot: I haz the power, 2015-07-17 00:07:58]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-07-17 00:09:55]

Patchset 2 (id:??) landed as
https://crrev.com/abc0faae61c7b13c9e98a28f183b688d09142795
Cr-Commit-Position: refs/heads/master@{#339182}