Move tab middle-click close hander to onMouseUp event (#6791)
Move tab middle-click close hander to onMouseUp event (#6791)


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