App link handling is not just for "official" verified handlers

Allow apps to be enabled as link handlers for their accepted domains
even when they are not the "official" apps for those domains.

Also clean up a bunch of inconsistent/wrong state reporting in the UI.

Bug 22069429

Change-Id: Ic3b2bcc476dfc30085d3df7412b02bdc5d53df6d

src/com/android/settings/applications/ManageApplications.java

@@ -20,7 +20,6 @@ import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
-import android.content.pm.IntentFilterVerificationInfo;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.os.Environment;
@@ -76,7 +75,6 @@ import com.android.settingslib.applications.ApplicationsState.VolumeFilter;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.Comparator;
-import java.util.List;
 
 /**
  * Activity to pick an application that will be used to display installation information and
@@ -1047,14 +1045,7 @@ public class ManageApplications extends InstrumentedFragment
         }
 
         private CharSequence getDomainsSummary(String packageName) {
-            ArraySet<String> result = new ArraySet<>();
-            List<IntentFilterVerificationInfo> list =
-                    mPm.getIntentFilterVerifications(packageName);
-            for (IntentFilterVerificationInfo ivi : list) {
-                for (String host : ivi.getDomains()) {
-                    result.add(host);
-                }
-            }
+            ArraySet<String> result = Utils.getHandledDomains(mPm, packageName);
             if (result.size() == 0) {
                 return mContext.getString(R.string.domain_urls_summary_none);
             } else if (result.size() == 1) {