Clarify that cdb is required to be installed

Clarify that cdb is required to be installed

TBR=brucedawson@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2735343002
Cr-Commit-Position: refs/heads/master@{#455409}
Committed: https://chromium.googlesource.com/chromium/src/+/ae16e9d846ee4a1d5a8d8968dcb4eefcd410fd0a

[jochen (gone - plz use gerrit), 2017-03-08 08:52:08]

The CQ bit was checked by jochen@chromium.org

[commit-bot: I haz the power, 2017-03-08 08:52:35]

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, 2017-03-08 09:04:46]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1488963128802110, "parent_rev":
"e14e925e1705ff0cf7bc9726afc6761459a254a1", "commit_rev":
"ae16e9d846ee4a1d5a8d8968dcb4eefcd410fd0a"}

[commit-bot: I haz the power, 2017-03-08 09:05:25]

Description was changed from

==========
Clarify that cdb is required to be installed

TBR=brucedawson@chromium.org
BUG=
==========

to

==========
Clarify that cdb is required to be installed

TBR=brucedawson@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2735343002
Cr-Commit-Position: refs/heads/master@{#455409}
Committed:
https://chromium.googlesource.com/chromium/src/+/ae16e9d846ee4a1d5a8d8968dcb4...
==========

[commit-bot: I haz the power, 2017-03-08 09:05:27]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/ae16e9d846ee4a1d5a8d8968dcb4...

[brucedawson, 2017-03-08 18:04:21]

lgtm