Code: NetworkThrottleManagerImpl::NetworkThrottleManagerImpl()
     : lifetime_median_estimate_(PercentileEstimator::kMedianPercentile,
                                 kInitialMedianInMs),
       outstanding_recomputation_timer_(
          base::MakeUnique<base::Timer>(false /* retain_user_task */,
                                         false /* is_repeating */)),
       tick_clock_(new base::DefaultTickClock()),
       weak_ptr_factory_(this) {}

Vulnerability Type: 
CWE ID: CWE-311
Summary: Inappropriate implementation in ChromeVox in Google Chrome OS prior to 62.0.3202.74 allowed a remote attacker in a privileged network position to observe or tamper with certain cleartext HTTP requests by leveraging that position.
Commit Message: Replace base::MakeUnique with std::make_unique in net/.

base/memory/ptr_util.h includes will be cleaned up later.

Bug: 755727
Change-Id: Ibaf46f05c9b02b76f9a91e819984b087a8c0d434
Reviewed-on: https://chromium-review.googlesource.com/627300
Commit-Queue: Jeremy Roman <jbroman@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Bence Béky <bnc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#498123}