This will allow users on unsupported platforms to successfully bypass vpython
via the recognized environment variable.

R=tandrii@chromium.org, vadimsh@chromium.org

Change-Id: Id63019443321d9f63550fc11e7a4ae3f684b17e7
Reviewed-on: https://chromium-review.googlesource.com/927695
Commit-Queue: Robbie Iannucci <iannucci@chromium.org>
Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>

Have the "update_depot_tools" script also do a CIPD tool sync. This will
ensure that users and systems have access to tooling at sync-time rather
than just-in-time loading them at execution time.

Update the tool boostraps to suppress any sort of syncing logs, if it
does happen. This will ensure that users who execute the tools don't see
unexpected output.

BUG=chromium:748651
TEST=local
  - Tested on Mac and Windows.

Change-Id: I1aad897d885a07beeac40a372a658681720efd2a
Reviewed-on: https://chromium-review.googlesource.com/591229
Commit-Queue: Daniel Jacques <dnj@chromium.org>
Reviewed-by: Robbie Iannucci <iannucci@chromium.org>

This reverts commit 4d92fe43.

Reason for revert: This moved the logging from invoking `led` or `vpython` to whenever someone would run something that would end up invoking `update_depot_tools`. It's good that we are calling this when we run update_depot_tools, but we probably should've suppressed the logging there in at least the success case, because now things are even more confusing. See crbug.com/748651.

Original change's description:
> [bootstraps] Sync at gclient, suppress output.
> 
> Have the "update_depot_tools" script also do a CIPD tool sync. This will
> ensure that users and systems have access to tooling at sync-time rather
> than just-in-time loading them at execution time.
> 
> Update the tool boostraps to suppress any sort of syncing logic, if it
> does happen. This will ensure that users who execute the tools don't se
> unexpected output.
> 
> BUG=None
> TEST=local
>   - Tested on Mac and Windows.
> 
> R=​dpranke@chromium.org, iannucci@chromium.org
> 
> Change-Id: I8efce8c73cc4e82ffdf5067ba9b917119a81e843
> Reviewed-on: https://chromium-review.googlesource.com/581494
> Commit-Queue: Daniel Jacques <dnj@chromium.org>
> Reviewed-by: Robbie Iannucci <iannucci@chromium.org>

TBR=iannucci@chromium.org,dpranke@chromium.org,dnj@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: None
Change-Id: I2485c9dd2e48a8dbdeebfff5da9d4c708e0edcb7
Reviewed-on: https://chromium-review.googlesource.com/585867Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Dirk Pranke <dpranke@chromium.org>

Have the "update_depot_tools" script also do a CIPD tool sync. This will
ensure that users and systems have access to tooling at sync-time rather
than just-in-time loading them at execution time.

Update the tool boostraps to suppress any sort of syncing logic, if it
does happen. This will ensure that users who execute the tools don't se
unexpected output.

BUG=None
TEST=local
  - Tested on Mac and Windows.

R=dpranke@chromium.org, iannucci@chromium.org

Change-Id: I8efce8c73cc4e82ffdf5067ba9b917119a81e843
Reviewed-on: https://chromium-review.googlesource.com/581494
Commit-Queue: Daniel Jacques <dnj@chromium.org>
Reviewed-by: Robbie Iannucci <iannucci@chromium.org>

BUG=None
TEST=None
R=sergeyberezin@chromium.org

Change-Id: I2bb22ad002b82767c6a7efb68412f9c1dbf57c27
Reviewed-on: https://chromium-review.googlesource.com/502228Reviewed-by: Sergey Berezin <sergeyberezin@chromium.org>
Reviewed-by: Robbie Iannucci <iannucci@chromium.org>
Commit-Queue: Robbie Iannucci <iannucci@chromium.org>

BUG=717208
R=dnj@chromium.org

Change-Id: If937a382be9aa4d8eb5f957386e8b1b28cc1c3ac
Reviewed-on: https://chromium-review.googlesource.com/492086Reviewed-by: Daniel Jacques <dnj@chromium.org>
Reviewed-by: Nodir Turakulov <nodir@chromium.org>
Commit-Queue: Sergey Berezin <sergeyberezin@chromium.org>