Fixed normal bug EXT-4862 - Nearby Chat pop-up toasts close affordance displays under prior toasts.

Implemented same fix for notification toasts.

--HG--
branch : product-engine

indra/newview/llnearbychathandler.cpp

@@ -274,6 +274,13 @@ void LLNearbyChatScreenChannel::showToastsBottom()
 			toast->setRect(toast_rect);
 			toast->setIsHidden(false);
 			toast->setVisible(TRUE);
+
+			if(!toast->hasFocus())
+			{
+				// Fixing Z-order of toasts (EXT-4862)
+				// Next toast will be positioned under this one.
+				gFloaterView->sendChildToBack(toast);
+			}
 			
 			bottom = toast->getRect().mTop;
 		}		

indra/newview/llscreenchannel.cpp

@@ -533,9 +533,13 @@ void LLScreenChannel::showToastsBottom()
 			// HACK
 			// EXT-2653: it is necessary to prevent overlapping for secondary showed toasts
 			(*it).toast->setVisible(TRUE);
-			// Show toast behind floaters. (EXT-3089)
-			gFloaterView->sendChildToBack((*it).toast);
 		}		
+		if(!(*it).toast->hasFocus())
+		{
+			// Fixing Z-order of toasts (EXT-4862)
+			// Next toast will be positioned under this one.
+			gFloaterView->sendChildToBack((*it).toast);
+		}
 	}
 
 	if(it != mToastList.rend())