Merge "Updated reference to DisabledOnRavenwood." into main

* Write your unit test just like you would for an Android device:

```

import android.platform.test.annotations.IgnoreUnderRavenwood;

import android.platform.test.annotations.DisabledOnRavenwood;

import android.platform.test.ravenwood.RavenwoodRule;

import androidx.test.ext.junit.runners.AndroidJUnit4;

* APIs available under Ravenwood are stateless by default.  If your test requires explicit states (such as defining the UID you’re running under, or requiring a main `Looper` thread), add a `RavenwoodRule` to declare that:

```

import android.platform.test.annotations.IgnoreUnderRavenwood;

import android.platform.test.annotations.DisabledOnRavenwood;

import android.platform.test.ravenwood.RavenwoodRule;

import androidx.test.runner.AndroidJUnit4;

    }

    @Test

    @IgnoreUnderRavenwood(blockedBy = PackageManager.class)

    @DisabledOnRavenwood(blockedBy = PackageManager.class)

    public void testComplex() {

        // Complex test that runs on devices, but is ignored under Ravenwood

    }