Read/write Odrefresh metrics in XML format am: 82f62eedb2

Original change: https://android-review.googlesource.com/c/platform/art/+/2101702

Change-Id: I2c315d38f9665570c17287adb1d056e29d4dc15d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>