commit 417973edea951bca0a22ec26d4bad5c26fb79423
author Badhri Jagan Sridharan <badhri@google.com> Fri Nov 16 15:39:22 2018 -0800
committer Badhri Jagan Sridharan <badhri@google.com> Mon Dec 10 17:37:27 2018 -0800
tree 0124338abd53465edac6063c36cfc91355658e8d
parent a33ff39bba03468c3828d7b4050e5d8809d1c916

Log UsbDeviceAttached events for Audio devices

UsbDeviceAttached is logged when the device has an audio interface.
Info such as VID, PID, whether the device has hid or mass storage
interface and the duration for which the usb device was connected
would be logged as well.

Bug: 118783261
Test: Manually tested by running: adb shell cmd stats print-logs,
    adb logcat | grep statsd | grep \(77\)
Change-Id: I57bbfd22ef377553daa113968fe53c4fe0f8e4d2