Allow getComponentName() to be used in tests

Add @TestApi annotation to AccessibilityServiceInfo.getComponentName().

Test: manual
Bug: 169601090
Change-Id: I83f1fdfafd49ec7c625ed2ebad399b15df191dcb

core/api/test-current.txt

@@ -75,6 +75,10 @@ package android.accessibilityservice {
     field public static final int ACCESSIBILITY_TAKE_SCREENSHOT_REQUEST_INTERVAL_TIMES_MS = 1000; // 0x3e8
   }
 
+  public class AccessibilityServiceInfo implements android.os.Parcelable {
+    method @NonNull public android.content.ComponentName getComponentName();
+  }
+
 }
 
 package android.animation {

core/java/android/accessibilityservice/AccessibilityServiceInfo.java

@@ -24,6 +24,7 @@ import android.annotation.IntDef;
 import android.annotation.IntRange;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.annotation.TestApi;
 import android.compat.annotation.ChangeId;
 import android.compat.annotation.EnabledAfter;
 import android.compat.annotation.UnsupportedAppUsage;
@@ -522,6 +523,7 @@ public class AccessibilityServiceInfo implements Parcelable {
     /**
      * The component name the accessibility service.
      */
+    @NonNull
     private ComponentName mComponentName;
 
     /**
@@ -772,13 +774,15 @@ public class AccessibilityServiceInfo implements Parcelable {
     /**
      * @hide
      */
-    public void setComponentName(ComponentName component) {
+    public void setComponentName(@NonNull ComponentName component) {
         mComponentName = component;
     }
 
     /**
      * @hide
      */
+    @TestApi
+    @NonNull
     public ComponentName getComponentName() {
         return mComponentName;
     }