Basic scaffolding for a "content shell", i.e. test browser over the content module.

content/common/set_process_title_linux.cc

 // Copyright (c) 2009 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.
 
 // This file implements BSD-style setproctitle() for Linux.
 // It is written such that it can easily be compiled outside Chromium.
 //
 // The Linux kernel sets up two locations in memory to pass arguments and
 // environment variables to processes. First, there are two char* arrays stored
 // one after another: argv and environ. A pointer to argv is passed to main(),
@@ skipping 85 matching lines @@
     size_t size = snprintf(g_main_argv[0], avail_size, "%s ", g_orig_argv0);
     if (size < avail_size)
       vsnprintf(g_main_argv[0] + size, avail_size - size, fmt, ap);
   }
   va_end(ap);
   g_main_argv[1] = NULL;
 }
 
 // A version of this built into glibc would not need this function, since
 // it could stash the argv pointer in __libc_start_main(). But we need it.
-void setproctitle_init(char** main_argv) {
+void setproctitle_init(const char** main_argv) {
   if (g_main_argv)
     return;
 
   uintptr_t page_size = sysconf(_SC_PAGESIZE);
   // Check that the argv array is in fact on the same page of memory
   // as the environment array just as an added measure of protection.
   if (((uintptr_t) environ) / page_size == ((uintptr_t) main_argv) / page_size)
-    g_main_argv = main_argv;
+    g_main_argv = const_cast<char**>(main_argv);
 }