Fix Settings crash when clicking search bar

- When user disable settings suggestion in App Settings, click
search button without leaving settings app. The search button is
still existed.
- Doesn't allow user to disable app in App Settings
- Add check before start search intent

Change-Id: Ifbc4615914678d8df734e14d63bb626403313d1e
Fixes: 118805907
Test: manual

src/com/android/settings/search/SearchFeatureProvider.java

@@ -23,6 +23,7 @@ import android.app.Activity;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.provider.Settings;
 import android.view.View;
 import android.view.ViewGroup;
@@ -88,6 +89,11 @@ public interface SearchFeatureProvider {
             intent.setPackage(getSettingsIntelligencePkgName(activity));
             final Context context = activity.getApplicationContext();
 
+            if (activity.getPackageManager().queryIntentActivities(intent,
+                    PackageManager.MATCH_DEFAULT_ONLY).isEmpty()) {
+                return;
+            }
+
             FeatureFactory.getFactory(context).getSlicesFeatureProvider()
                     .indexSliceDataAsync(activity.getApplicationContext());
             FeatureFactory.getFactory(context).getMetricsFeatureProvider()