webkitpy: Memoize chromium_base() and depot_tools_base().

webkitpy: Memoize chromium_base() and depot_tools_base().

It makes the code simpler.

BUG=710535
Review-Url: https://codereview.chromium.org/2865403006
Cr-Commit-Position: refs/heads/master@{#471108}
Committed: https://chromium.googlesource.com/chromium/src/+/031529c704a5b30efa31a7d7dfc039c6e666bad8

[tkent, 2017-05-11 08:47:47]

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

[commit-bot: I haz the power, 2017-05-11 08:48:16]

Dry run: CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-05-11 10:03:16]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-05-11 10:03:16]

Dry run: This issue passed the CQ dry run.

[tkent, 2017-05-11 14:58:22]

tkent@chromium.org changed reviewers:
+ qyearsley@chromium.org

[tkent, 2017-05-11 14:58:22]

qyearsley@, would you review this please?

[qyearsley, 2017-05-11 16:38:09]

lgtm

[tkent, 2017-05-11 22:47:03]

The CQ bit was checked by tkent@chromium.org

[commit-bot: I haz the power, 2017-05-11 22:47:49]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-05-11 23:06:30]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1494542823034050, "parent_rev":
"4abfe94b81096ee4c806240b0ea5e2c03bfe4b65", "commit_rev":
"031529c704a5b30efa31a7d7dfc039c6e666bad8"}

[commit-bot: I haz the power, 2017-05-11 23:06:47]

Description was changed from

==========
webkitpy: Memoize chromium_base() and depot_tools_base().

It makes the code simpler.

BUG=710535
==========

to

==========
webkitpy: Memoize chromium_base() and depot_tools_base().

It makes the code simpler.

BUG=710535

Review-Url: https://codereview.chromium.org/2865403006
Cr-Commit-Position: refs/heads/master@{#471108}
Committed:
https://chromium.googlesource.com/chromium/src/+/031529c704a5b30efa31a7d7dfc0...
==========

[commit-bot: I haz the power, 2017-05-11 23:06:49]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/031529c704a5b30efa31a7d7dfc0...