Give plug-in processes an executable heap and disable PIE/ASLR for Native

chrome/service/service_utility_process_host.cc

 // Copyright (c) 2011 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/service/service_utility_process_host.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/message_loop.h"
 #include "base/message_loop_proxy.h"
@@ skipping 98 matching lines @@
 
   CommandLine cmd_line(exe_path);
   cmd_line.AppendSwitchASCII(switches::kProcessType, switches::kUtilityProcess);
   cmd_line.AppendSwitchASCII(switches::kProcessChannelID, channel_id());
   cmd_line.AppendSwitch(switches::kLang);
 
   return Launch(&cmd_line, no_sandbox, exposed_dir);
 }
 
 FilePath ServiceUtilityProcessHost::GetUtilityProcessCmd() {
-  return GetChildPath(true);
+#if defined(OS_LINUX)
+  int flags = CHILD_ALLOW_SELF;
+#else
+  int flags = CHILD_NORMAL;
+#endif
+  return GetChildPath(flags);
 }
 
 bool ServiceUtilityProcessHost::CanShutdown() {
   return true;
 }
 
 void ServiceUtilityProcessHost::OnChildDied() {
   if (waiting_for_reply_) {
     // If we are yet to receive a reply then notify the client that the
     // child died.
@@ skipping 83 matching lines @@
   printing::Emf metafile;
   if (!metafile.InitFromFile(metafile_path)) {
     OnRenderPDFPagesToMetafileFailed();
   } else {
     OnRenderPDFPagesToMetafileSucceeded(metafile,
                                         highest_rendered_page_number);
   }
 #endif  // defined(OS_WIN)
 }