[sources] don't displatch ADD_TAB and TOGGLE_ACTIVE_SEARCH when not needed (#6878)
[sources] don't displatch ADD_TAB and TOGGLE_ACTIVE_SEARCH when not needed (#6878)


ruturajv/debugger.html,ruturajv/debugger.html,darkwing/debugger.html,jbhoosreddy/debugger.html,darkwing/debugger.html,darkwing/debugger.html,wldcordeiro/debugger.html,bomsy/debugger.html,jasonLaster/debugger.html,devtools-html/debugger.html,jbhoosreddy/debugger.html,darkwing/debugger.html,devtools-html/debugger.html,jbhoosreddy/debugger.html,devtools-html/debugger.html,bomsy/debugger.html,devtools-html/debugger.html,jasonLaster/debugger.html,darkwing/debugger.html,jasonLaster/debugger.html,wldcordeiro/debugger.html,jasonLaster/debugger.html,jasonLaster/debugger.html,bomsy/debugger.html,jbhoosreddy/debugger.html,ruturajv/debugger.html,devtools-html/debugger.html,ruturajv/debugger.html,jbhoosreddy/debugger.html,ruturajv/debugger.html,wldcordeiro/debugger.html,devtools-html/debugger.html,wldcordeiro/debugger.html,wldcordeiro/debugger.html,darkwing/debugger.html,wldcordeiro/debugger.html,jasonLaster/debugger.html,ruturajv/debugger.html,ruturajv/debugger.html,wldcordeiro/debugger.html,bomsy/debugger.html,jbhoosreddy/debugger.html,bomsy/debugger.html,bomsy/debugger.html,bomsy/debugger.html,jbhoosreddy/debugger.html,darkwing/debugger.html,devtools-html/debugger.html,jasonLaster/debugger.html