DevTools: allow binding remote debugging to port 0.

chrome/browser/chrome_browser_main.cc

 // Copyright (c) 2012 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 "chrome/browser/chrome_browser_main.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 439 matching lines @@
       command_line, current_directory, startup_profile_dir);
   return true;
 }
 #endif  // !defined(OS_ANDROID)
 
 void LaunchDevToolsHandlerIfNeeded(const CommandLine& command_line) {
   if (command_line.HasSwitch(::switches::kRemoteDebuggingPort)) {
     std::string port_str =
         command_line.GetSwitchValueASCII(::switches::kRemoteDebuggingPort);
     int port;
-    if (base::StringToInt(port_str, &port) && port > 0 && port < 65535) {
+    if (base::StringToInt(port_str, &port) && port >= 0 && port < 65535) {
       g_browser_process->CreateDevToolsHttpProtocolHandler(
           chrome::HOST_DESKTOP_TYPE_NATIVE,
           "127.0.0.1",
           port);
     } else {
       DLOG(WARNING) << "Invalid http debugger port number " << port;
     }
   }
 }
 
@@ skipping 1181 matching lines @@
   chromeos::CrosSettings::Shutdown();
 #endif
 #endif
 }
 
 // Public members:
 
 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
   chrome_extra_parts_.push_back(parts);
 }