[automerger skipped] Implement BatteryUsageStatsStore am: f7e7d084 am: 672745dd -s ours am: c8733dde -s ours

am skip reason: Merged-In I66bbb173f402e795c900ccf3bc82b8fb210142a4 with SHA-1 f7e7d084 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14922032

Change-Id: Ied19b19ee2edb547c27bde3b146bb069cf090fea