EXT-4379 FIXED tab_stop parameter initialization that prevented inventory panel from passing focus to folder view's scroll container.

Reviewed by Vadim Savchuk at https://codereview.productengine.com/secondlife/r/823/.

--HG--
branch : product-engine

indra/llui/lluictrl.cpp

@@ -101,6 +101,7 @@ LLUICtrl::LLUICtrl(const LLUICtrl::Params& p, const LLViewModelPtr& viewmodel)
 :	LLView(p),
 	mTentative(FALSE),
 	mIsChrome(FALSE),
+	mTabStop(FALSE),
     mViewModel(viewmodel),
 	mControlVariable(NULL),
 	mEnabledControlVariable(NULL),

indra/newview/llinventorypanel.cpp

@@ -175,6 +175,9 @@ void LLInventoryPanel::initFromParams(const LLInventoryPanel::Params& params)
 		setSortOrder(gSavedSettings.getU32(DEFAULT_SORT_ORDER));
 	}
 	mFolderRoot->setSortOrder(getFilter()->getSortOrder());
+
+	// Initialize base class params.
+	LLPanel::initFromParams(params);
 }
 
 LLInventoryPanel::~LLInventoryPanel()