Files
frameworks_base/core/java
Malcolm Chen 7521f33c8a Add HomeVisibilityObserver APIs in ActivityManager.
The new API will be @System which is used by Telephony stk app to
monitor foreground activity change.

Bug: 144351078
Test: manual with a test app that registers HomeVisibilityObserver
and monitor its callback.
Change-Id: I2f250cdd53a667b2d89e84e589b0ae0bc94a8aa3
Merged-In: I2f250cdd53a667b2d89e84e589b0ae0bc94a8aa3
2020-02-05 23:32:22 +00:00
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