DevTools: hosted mode fallback if generated files aren't uploaded yet

third_party/WebKit/Source/devtools/scripts/utils.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var fs = require("fs");
 var http = require("http");
 var https = require("https");
 var path = require("path");
 var parseURL = require("url").parse;
+var shell = require("child_process").execSync;
 var Stream = require("stream").Transform;
 
 function fetch(url)
 {
     return new Promise(fetchPromise);
 
     function fetchPromise(resolve, reject)
     {
         var request;
         var protocol = parseURL(url).protocol;
@@ skipping 94 matching lines @@
     } catch (error) {
         throw new Error(`Received an error: [${error}] while trying to remove: ${filePath}`);
     }
 }
 
 function includes(sequence, target)
 {
     return sequence.indexOf(target) > -1;
 }
 
+function shellOutput(command)
+{
+    return shell(command).toString().trim();
+}
+
 module.exports = {
     fetch,
     atob,
     isFile,
     isDir,
     copy,
     copyRecursive,
     removeRecursive,
     includes,
+    shellOutput,
 };