DevTools: implement proxy server for hosted mode

third_party/WebKit/Source/devtools/hosted_mode/request.js

+var http = require("http");
+var https = require("https");
+var parseUrl = require("url").parse;
+
+function request(url)
+{
+    return new Promise((resolve, reject) => {
+        var request;
+        var protocol = parseUrl(url).protocol;
+
+        if (protocol === "https:") {

[lushnikov, 2016/07/22 02:56:21]

style: remove {}

[chenwilliam, 2016/07/22 17:35:25]

Done.

+            request = https.get(url, handleResponse);
+        } else if (protocol === "http:") {
+            request = http.get(url, handleResponse);
+        } else {
+            reject(new Error(`Invalid protocol for url: ${url}`))
+        }
+
+        function handleResponse(response)
+        {
+            if (response.statusCode !== 200) {
+                reject(new Error(`Request error: + ${response.statusCode}`));

[lushnikov, 2016/07/22 02:56:21]

you'd want to return here as well

[chenwilliam, 2016/07/22 17:35:25]

Done.

+            }
+            var body = "";
+            response.on("data", chunk => body += chunk);
+            response.on("end", () => resolve(body));
+        }
+
+        request.on("error", (err) => reject(err));

[lushnikov, 2016/07/22 02:56:21]

this will throw in case of rejection

+    });
+}
+
+module.exports = request;