Bug 1332955 - Consider restore data( for bookmark parent stack) when reloading home panels. r=ahunt

MozReview-Commit-ID: 7m6HOnfPLK3

--HG--
extra : rebase_source : f7351689302d98aaa9c7ebfe15c4046e661d8c9e

mobile/android/base/java/org/mozilla/gecko/home/HomePager.java

@@ -225,8 +225,9 @@ public class HomePager extends ViewPager implements HomeScreen {
         // list of panels in place.
         mTabStrip.setVisibility(View.INVISIBLE);
 
-        // If HomeConfigLoader already exist, force load to select the current item
-        if (lm.getLoader(LOADER_ID_CONFIG) != null) {
+        // If HomeConfigLoader already exist and there's no restoreData(for bookmark's parentStack),
+        // call forceLoad() to trigger updateUiFromConfigState() and reset HomePager's adapter.
+        if (lm.getLoader(LOADER_ID_CONFIG) != null && restoreData == null) {
             lm.getLoader(LOADER_ID_CONFIG).forceLoad();
         } else {
             // Load list of panels from configuration