resolve merge conflicts of aad998c0b4 to pi-dev-plus-aosp

Bug: None
Test: I solemnly swear I tested this conflict resolution.
Change-Id: Icf172daeb848f746c81acd25a4406decc00ed875
Merged-In: Ib32dafbd3c6fcbe11186dc8ecab6b09c9b734067

core/java/com/android/internal/app/AssistUtils.java

@@ -152,6 +152,12 @@ public class AssistUtils {
             return ComponentName.unflattenFromString(setting);
         }
 
+        final String defaultSetting = mContext.getResources().getString(
+                R.string.config_defaultAssistantComponentName);
+        if (defaultSetting != null) {
+            return ComponentName.unflattenFromString(defaultSetting);
+        }
+
         // Fallback to keep backward compatible behavior when there is no user setting.
         if (activeServiceSupportsAssistGesture()) {
             return getActiveServiceComponentName();