Merge the 2019-01-01 SPL branch from AOSP-Partner

* security-aosp-nyc-mr2-release:
  RESTRICT AUTOMERGE: Fix heap buffer overflow
  RESTRICT AUTOMERGE: Add SkAndroidFrameworkUtils::SafetyNetLog
  RESTRICT AUTOMERGE: Cherry-pick "begin cleanup of malloc porting layer"

Change-Id: Ie12eca3577525925cf21b9c61a7f3d0bec130180