Fix DCHECH errors on Windows

headless/app/headless_shell.cc

 // 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.
 
 #include <memory>
 #include <sstream>
 #include <string>
 #include <utility>
 
 #include "base/base64.h"
@@ skipping 487 matching lines @@
     LOG(ERROR) << "Virtual time budget is disabled "
                << "when remote debugging is enabled.";
     return false;
   }
   return true;
 }
 
 #if defined(OS_WIN)
 int HeadlessShellMain(HINSTANCE instance,
                       sandbox::SandboxInterfaceInfo* sandbox_info) {
-  base::CommandLine::Init(0, nullptr);
+  RunChildProcessIfNeeded(instance, sandbox_info);
   HeadlessBrowser::Options::Builder builder(0, nullptr);
   builder.SetInstance(instance);
   builder.SetSandboxInfo(std::move(sandbox_info));
 #else
 int HeadlessShellMain(int argc, const char** argv) {
-  base::CommandLine::Init(argc, argv);
   RunChildProcessIfNeeded(argc, argv);
   HeadlessBrowser::Options::Builder builder(argc, argv);
 #endif  // defined(OS_WIN)
   HeadlessShell shell;
 
   // Enable devtools if requested.
   const base::CommandLine& command_line(
       *base::CommandLine::ForCurrentProcess());
   if (!ValidateCommandLine(command_line))
     return EXIT_FAILURE;
@@ skipping 88 matching lines @@
 
 int HeadlessShellMain(const content::ContentMainParams& params) {
 #if defined(OS_WIN)
   return HeadlessShellMain(params.instance, params.sandbox_info);
 #else
   return HeadlessShellMain(params.argc, params.argv);
 #endif
 }
 
 }  // namespace headless