Issue #2230, #3391 - Load filters on "download begin" event

src/plugin/PluginFilter.cpp

Index: src/plugin/PluginFilter.cpp
===================================================================
--- a/src/plugin/PluginFilter.cpp
+++ b/src/plugin/PluginFilter.cpp
@@ -445,11 +445,6 @@
 // CPluginFilter
 // ============================================================================
 
-CPluginFilter::CPluginFilter()
-{
-  ClearFilters();
-}
-
 bool CPluginFilter::AddFilterElementHide(std::wstring filterText)
 {
   DEBUG_FILTER(L"Input: " + filterText + L" filterFile" + filterFile);
@@ -609,9 +604,9 @@
   return false;
 }
 
-bool CPluginFilter::LoadHideFilters(std::vector<std::wstring> filters)
+bool CPluginFilter::LoadHideFilters()
 {
-  ClearFilters();
+  auto filters = CPluginClient::GetInstance()->GetElementHidingSelectors(domain);
   bool isRead = false;
   CPluginClient* client = CPluginClient::GetInstance();
 
@@ -645,13 +640,3 @@
 
   return isRead;
 }
-
-void CPluginFilter::ClearFilters()
-{
-  // Clear filter maps
-  CriticalSection::Lock filterEngineLock(s_criticalSectionFilterMap);
-  m_elementHideTags.clear();
-  m_elementHideTagsId.clear();
-  m_elementHideTagsClass.clear();
-}
-