adding pageIds to OSInAppMessage

Author: emawby

OneSignalSDK/onesignal/src/main/java/com/onesignal/OSInAppMessage.java

@@ -48,6 +48,12 @@ class OSInAppMessage {
     @NonNull
     private Set<String> clickedClickIds;
 
+    /**
+     * IAM carousel pages viewed
+     */
+    @NonNull
+    private Set<String> viewedPageIds = new HashSet<>();
+
     /**
      * Reference to redisplay properties
      */
@@ -210,6 +216,10 @@ void addClickId(String clickId) {
         clickedClickIds.add(clickId);
     }
 
+    void clearPageIds() { viewedPageIds.clear(); }
+
+    void addPageIds(String pageId) { viewedPageIds.add(pageId); }
+
     OSInAppMessageRedisplayStats getRedisplayStats() {
         return redisplayStats;
     }