memory-infra: Add peak-detector skeleton.

Adds a skeleton and tests for the MemoryPeakDetector.
This CL does not yet take over the old peak detector in
MemoryDumpScheduler, which will happen in the next CLs.

BUG=607533
TBR=thakis@chromium.org

Review-Url: https://codereview.chromium.org/2786373002
Cr-Commit-Position: refs/heads/master@{#461678}


CrOS-Libchrome-Original-Commit: f34c3e056c9a2eaa12a41daa2f8e05b579360f28
5 files changed
tree: 3393e23daad651501240ade13dda16b021c77c08
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/