Update minimum OS X version in docs for building Chrome

Update minimum OS X version in docs for building Chrome

See https://groups.google.com/a/chromium.org/d/msg/chromium-dev/B7TY7QucDsA/2DXT2HdPAgAJ
for context.

BUG=none

Review-Url: https://codereview.chromium.org/2655023002
Cr-Commit-Position: refs/heads/master@{#446017}
Committed: https://chromium.googlesource.com/chromium/src/+/5179f42d65e1e17e8d9a89906fd533352f101f5a

[Paweł Hajdan Jr., 2017-01-25 14:27:17]

phajdan.jr@chromium.org changed reviewers:
+ dpranke@chromium.org

[Nico, 2017-01-25 14:36:29]

thakis@chromium.org changed reviewers:
+ thakis@chromium.org

[Nico, 2017-01-25 14:36:30]

lgtm

[Nico, 2017-01-25 14:36:33]

The CQ bit was checked by thakis@chromium.org

[commit-bot: I haz the power, 2017-01-25 14:36:48]

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, 2017-01-25 14:47:22]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1485354993018910, "parent_rev":
"3175abc1ac46d878e39af3e5956436d48d5518fb", "commit_rev":
"5179f42d65e1e17e8d9a89906fd533352f101f5a"}

[commit-bot: I haz the power, 2017-01-25 14:48:01]

Description was changed from

==========
Update minimum OS X version in docs for building Chrome

See
https://groups.google.com/a/chromium.org/d/msg/chromium-dev/B7TY7QucDsA/2DXT2...
for context.

BUG=none
==========

to

==========
Update minimum OS X version in docs for building Chrome

See
https://groups.google.com/a/chromium.org/d/msg/chromium-dev/B7TY7QucDsA/2DXT2...
for context.

BUG=none

Review-Url: https://codereview.chromium.org/2655023002
Cr-Commit-Position: refs/heads/master@{#446017}
Committed:
https://chromium.googlesource.com/chromium/src/+/5179f42d65e1e17e8d9a89906fd5...
==========

[commit-bot: I haz the power, 2017-01-25 14:48:01]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/5179f42d65e1e17e8d9a89906fd5...

[Dirk Pranke, 2017-01-25 17:11:17]

lgtm, thanks!