MetricsGroup split into 3 groups, session, engine, and crypto.
MetricsFrontEnd and Report removed.
This is a merge from wvgerrit/28420
Bug: 36217927
Test: Added unit tests to cover modified code.
Change-Id: I2f39f99ce88cc2229d6d1aa9459c67c5b86ccef4
As a large number of provisioning errors can come from failures
initializing OEMCrypto we need to collect these messages.
Errors and warnings were only printed to the log. This
change takes those messages and puts them into the oemcrypto
intialization mode metric.
"Mode" was chosen as most messages were about how oemcrypto
was initialized (e.g. into L3 because no L1 library was found).
Test: Ran all GTS Media Tests
Bug: 34782934
Change-Id: I1fcdd74c99011d53bdffe9609d2f4c46c222e2f6
This change is the complete Widevine metrics system. It will
measure and record runtime information about what is happening
in the CDM - such as errors and throughput.
Bug: 33745339
Bug: 26027857
Change-Id: Ic9a82074f1e2b72c72d751b235f8ae361232787d
