Fixed potential memory leak, moved variables

app/src/main/java/acr/browser/lightning/activity/TabsManager.java

@@ -47,6 +47,9 @@ public class TabsManager {
     @Nullable private LightningView mCurrentTab;
     @Nullable private TabNumberChangedListener mTabNumberListener;
 
+    private boolean mIsInitialized = false;
+    private List<Runnable> mPostInitializationWorkList = new ArrayList<>();
+
     @Inject PreferenceManager mPreferenceManager;
     @Inject Bus mEventBus;
     @Inject Application mApp;
@@ -64,8 +67,9 @@ public class TabsManager {
         mTabNumberListener = listener;
     }
 
-    private boolean mIsInitialized = false;
-    private List<Runnable> mPostInitializationWorkList = new ArrayList<>();
+    public void cancelPendingWork() {
+        mPostInitializationWorkList.clear();
+    }
 
     public void doAfterInitialization(@NonNull Runnable runnable) {
         if (mIsInitialized) {

app/src/main/java/acr/browser/lightning/browser/BrowserPresenter.java

@@ -216,6 +216,7 @@ public class BrowserPresenter {
     public void shutdown() {
         onTabChanged(null);
         mTabsModel.setTabNumberChangedListener(null);
+        mTabsModel.cancelPendingWork();
     }
 
     public void tabChanged(int position) {