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

content/common/set_process_title_linux.cc

Index: content/common/set_process_title_linux.cc
===================================================================
--- content/common/set_process_title_linux.cc	(revision 100566)
+++ content/common/set_process_title_linux.cc	(working copy)
@@ -103,7 +103,7 @@
 
 // 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;
 
@@ -111,5 +111,5 @@
   // 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);
 }