Validate pid can be trusted Bug: 200288596 Test: Manual Test: atest android.security.cts.AttributionSourceTest#testPidCheck Change-Id: I07f86ba220bedb1393f4d7ed23175e92d4576601 (cherry picked from commit f29223746d9009a592b0ee7ee5a92398589c5b53) Merged-In:I07f86ba220bedb1393f4d7ed23175e92d4576601