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

content/browser/worker_host/worker_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 "content/browser/worker_host/worker_process_host.h"
 
 #include <set>
 #include <vector>
 
 #include "base/base_switches.h"
@@ skipping 100 matching lines @@
     }
   }
 
   ChildProcessSecurityPolicy::GetInstance()->Remove(id());
 }
 
 bool WorkerProcessHost::Init(int render_process_id) {
   if (!CreateChannel())
     return false;
 
-  FilePath exe_path = GetChildPath(true);
+#if defined(OS_LINUX)
+  int flags = CHILD_ALLOW_SELF;
+#else
+  int flags = CHILD_NORMAL;
+#endif
+
+  FilePath exe_path = GetChildPath(flags);
   if (exe_path.empty())
     return false;
 
   CommandLine* cmd_line = new CommandLine(exe_path);
   cmd_line->AppendSwitchASCII(switches::kProcessType, switches::kWorkerProcess);
   cmd_line->AppendSwitchASCII(switches::kProcessChannelID, channel_id());
 
   static const char* const kSwitchNames[] = {
     switches::kWebWorkerShareProcesses,
     switches::kDisableApplicationCache,
@@ skipping 500 matching lines @@
     }
   }
   return false;
 }
 
 WorkerProcessHost::WorkerInstance::FilterInfo
 WorkerProcessHost::WorkerInstance::GetFilter() const {
   DCHECK(NumFilters() == 1);
   return *filters_.begin();
 }