Adds a command-line flag indicating an open and listening socket to

headless/lib/browser/headless_browser_main_parts.cc

 // Copyright 2015 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.
 
 #include "headless/lib/browser/headless_browser_main_parts.h"
 
 #include "base/command_line.h"
 #include "content/public/common/content_switches.h"
 #include "headless/lib/browser/headless_browser_context_impl.h"
 #include "headless/lib/browser/headless_browser_impl.h"
@@ skipping 11 matching lines @@
 
 void HeadlessBrowserMainParts::PreMainMessageLoopRun() {
   const base::CommandLine* command_line =
       base::CommandLine::ForCurrentProcess();
   if (command_line->HasSwitch(switches::kLogNetLog)) {
     base::FilePath log_path =
         command_line->GetSwitchValuePath(switches::kLogNetLog);
     net_log_.reset(new HeadlessNetLog(log_path));
   }
 
-  if (browser_->options()->devtools_endpoint.address().IsValid()) {
+  if (browser_->options()->DevtoolsServerEnabled()) {
     StartLocalDevToolsHttpHandler(browser_->options());
     devtools_http_handler_started_ = true;
   }
   browser_->PlatformInitialize();
 }
 
 void HeadlessBrowserMainParts::PostMainMessageLoopRun() {
   if (devtools_http_handler_started_) {
     StopLocalDevToolsHttpHandler();
     devtools_http_handler_started_ = false;
   }
 }
 
 }  // namespace headless