Add vulcanize to tools.

tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/lib/CollectingHandler.js

Index: tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/lib/CollectingHandler.js
diff --git a/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/lib/CollectingHandler.js b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/lib/CollectingHandler.js
new file mode 100644
index 0000000000000000000000000000000000000000..8d63305ae33da4e6254f0398c63eab551471ada3
--- /dev/null
+++ b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/lib/CollectingHandler.js
@@ -0,0 +1,55 @@
+module.exports = CollectingHandler;
+
+function CollectingHandler(cbs){
+	this._cbs = cbs || {};
+	this.events = [];
+}
+
+var EVENTS = require("./").EVENTS;
+Object.keys(EVENTS).forEach(function(name){
+	if(EVENTS[name] === 0){
+		name = "on" + name;
+		CollectingHandler.prototype[name] = function(){
+			this.events.push([name]);
+			if(this._cbs[name]) this._cbs[name]();
+		};
+	} else if(EVENTS[name] === 1){
+		name = "on" + name;
+		CollectingHandler.prototype[name] = function(a){
+			this.events.push([name, a]);
+			if(this._cbs[name]) this._cbs[name](a);
+		};
+	} else if(EVENTS[name] === 2){
+		name = "on" + name;
+		CollectingHandler.prototype[name] = function(a, b){
+			this.events.push([name, a, b]);
+			if(this._cbs[name]) this._cbs[name](a, b);
+		};
+	} else {
+		throw Error("wrong number of arguments");
+	}
+});
+
+CollectingHandler.prototype.onreset = function(){
+	this.events = [];
+	if(this._cbs.onreset) this._cbs.onreset();
+};
+
+CollectingHandler.prototype.restart = function(){
+	if(this._cbs.onreset) this._cbs.onreset();
+
+	for(var i = 0, len = this.events.length; i < len; i++){
+		if(this._cbs[this.events[i][0]]){
+
+			var num = this.events[i].length;
+
+			if(num === 1){
+				this._cbs[this.events[i][0]]();
+			} else if(num === 2){
+				this._cbs[this.events[i][0]](this.events[i][1]);
+			} else {
+				this._cbs[this.events[i][0]](this.events[i][1], this.events[i][2]);
+			}
+		}
+	}
+};