Merge "Add one metrics field to record the cause of DNS query internal error"...
Merge "Add one metrics field to record the cause of DNS query internal error" into rvc-dev am: 65b1e19e am: 1ab9f61f am: 1f3ea2c5
Change-Id: Ic4015dcc8b24a8206f6a99a3d71bc0d1c51bd312