POSIX: add command line option to launch renderers in a wrapper

base/command_line.cc

 // Copyright (c) 2006-2008 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 "base/command_line.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #include <shellapi.h>
 #endif
@@ skipping 316 matching lines @@
   // Logic could be shorter but this is clearer.
   DCHECK(include_program ? !other.program().empty() : other.program().empty());
 
   size_t first_arg = include_program ? 0 : 1;
   for (size_t i = first_arg; i < other.argv_.size(); ++i)
     argv_.push_back(other.argv_[i]);
   std::map<std::string, StringType>::const_iterator i;
   for (i = other.switches_.begin(); i != other.switches_.end(); ++i)
     switches_[i->first] = i->second;
 }
+
+void CommandLine::PrependWrapper(const std::wstring& wrapper_wide) {
+  // The wrapper may have embedded arguments (like "gdb --args"). In this case,
+  // we don't pretend to do anything fancy, we just split on spaces.
+  const std::string wrapper = WideToASCII(wrapper_wide);
+  std::vector<std::string> wrapper_and_args;
+  SplitString(wrapper, ' ', &wrapper_and_args);
+  argv_.insert(argv_.begin(), wrapper_and_args.begin(), wrapper_and_args.end());
+}
+
 #endif