Reduce the number of threads created by the load TaskTracker tests.

Reduce the number of threads created by the load TaskTracker tests.

Creating 300 threads on low memory devices fails, resulting in
pthread_create returning EAGAIN and the tests crashing.

Reduce the created threads by 25%, as local testing shows this is
about the limit the devices can handle.

BUG=710561
TESt=base_unittests on device

Review-Url: https://codereview.chromium.org/2812073002
Cr-Commit-Position: refs/heads/master@{#463734}
Committed: https://chromium.googlesource.com/chromium/src/+/311fdefdd2885ff3e93c8a16e469a41ed14cb1c2

[mbjorge, 2017-04-11 18:54:58]

mbjorge@chromium.org changed reviewers:
+ fdoray@chromium.org

[robliao, 2017-04-11 19:14:00]

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

[robliao, 2017-04-11 19:14:00]

lgtm

[mbjorge, 2017-04-11 19:23:52]

The CQ bit was checked by mbjorge@chromium.org

[commit-bot: I haz the power, 2017-04-11 19:24:44]

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, 2017-04-11 19:51:50]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1491938632238370, "parent_rev":
"6db93d5b7ac95549bea2a1ec2d82cf6c1e8ed58d", "commit_rev":
"311fdefdd2885ff3e93c8a16e469a41ed14cb1c2"}

[commit-bot: I haz the power, 2017-04-11 19:52:44]

Description was changed from

==========
Reduce the number of threads created by the load TaskTracker tests.

Creating 300 threads on low memory devices fails, resulting in
pthread_create returning EAGAIN and the tests crashing.

Reduce the created threads by 25%, as local testing shows this is
about the limit the devices can handle.

BUG=710561
TESt=base_unittests on device
==========

to

==========
Reduce the number of threads created by the load TaskTracker tests.

Creating 300 threads on low memory devices fails, resulting in
pthread_create returning EAGAIN and the tests crashing.

Reduce the created threads by 25%, as local testing shows this is
about the limit the devices can handle.

BUG=710561
TESt=base_unittests on device

Review-Url: https://codereview.chromium.org/2812073002
Cr-Commit-Position: refs/heads/master@{#463734}
Committed:
https://chromium.googlesource.com/chromium/src/+/311fdefdd2885ff3e93c8a16e469...
==========

[commit-bot: I haz the power, 2017-04-11 19:52:45]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/311fdefdd2885ff3e93c8a16e469...