Commits
Ben Kwa authored d5b2af15446
Add metrics logging for file operations.
Log to two new histograms - one for operations originating from system
providers, the other for operations originating from external providers.
Events in these histograms are bucketed by
- type (copy, move, delete, etc)
- destination (system vs external provider, with a special bucket for
intra-provider operations)
- result (success vs failure)
BUG=26737132
Change-Id: Ic24c7a22fa3c1227e23cfbd42ae80ca1f70a19ba