[VK] Enable virtual keyboard UKM by default on M70.

Launch was approved.

Bug: 752657
Change-Id: I01ac04040b8b928c27512d203667dda234588153
Reviewed-on: https://chromium-review.googlesource.com/1184659
Reviewed-by: Scott Violet <sky@chromium.org>
Commit-Queue: Darren Shen <shend@chromium.org>
Cr-Commit-Position: refs/heads/master@{#585282}
bool IsMultiProcessMash() {
  return base::FeatureList::IsEnabled(features::kMash);
}

bool IsMultiProcessMash() {
  return base::FeatureList::IsEnabled(features::kMash);
}
