Fixed bug where history wasn't being deleted until the app was restarted

app/src/main/java/acr/browser/lightning/database/HistoryDatabase.java

@@ -31,7 +31,7 @@ public class HistoryDatabase extends SQLiteOpenHelper {
     private static final String KEY_TITLE = "title";
     private static final String KEY_TIME_VISITED = "time";
 
-    private static SQLiteDatabase mDatabase;
+    private SQLiteDatabase mDatabase;
 
     private static HistoryDatabase mInstance;
 
@@ -65,6 +65,12 @@ public class HistoryDatabase extends SQLiteOpenHelper {
         onCreate(db);
     }
 
+    public void deleteHistory() {
+        mDatabase.delete(TABLE_HISTORY, null, null);
+        mDatabase.close();
+        mDatabase = this.getWritableDatabase();
+    }
+
     public boolean isClosed() {
         return mDatabase == null || !mDatabase.isOpen();
     }

app/src/main/java/acr/browser/lightning/utils/WebUtils.java

@@ -33,7 +33,7 @@ public class WebUtils {
     }
 
     public static void clearHistory(@NonNull Context context, boolean systemBrowserPresent) {
-        context.deleteDatabase(HistoryDatabase.DATABASE_NAME);
+        HistoryDatabase.getInstance(context).deleteHistory();
         WebViewDatabase m = WebViewDatabase.getInstance(context);
         m.clearFormData();
         m.clearHttpAuthUsernamePassword();