EXT-2922 : 2nd inventroy shouldn't list "New Window" as an option, since it silently fails

Fixed the behavior so that New Window brings up a new floater inventory window instead of doing nothing.

--HG--
branch : avatar-pipeline

indra/newview/llfloaterinventory.cpp

@@ -107,10 +107,14 @@ LLInventoryPanel* LLFloaterInventory::getPanel()
 // static
 LLFloaterInventory* LLFloaterInventory::showAgentInventory()
 {
+	// Hack to generate semi-unique key for each inventory floater.
+	static S32 instance_num = 0;
+	instance_num = (instance_num + 1) % S32_MAX;
+
 	LLFloaterInventory* iv = NULL;
 	if (!gAgent.cameraMouselook())
 	{
-		iv = LLFloaterReg::showTypedInstance<LLFloaterInventory>("inventory", LLSD());
+		iv = LLFloaterReg::showTypedInstance<LLFloaterInventory>("inventory", LLSD(instance_num));
 	}
 	return iv;
 }

indra/newview/skins/default/xui/en/floater_inventory.xml

@@ -11,7 +11,7 @@
  help_topic="inventory"
  save_rect="true"
  save_visibility="true"
- single_instance="true"
+ single_instance="false"
  title="INVENTORY"
  width="467">
     <floater.string