NaCl: Send fatal log messages via shared memory.

components/nacl/loader/nacl_listener.h

 // Copyright 2013 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.
 
 #ifndef CHROME_NACL_NACL_LISTENER_H_
 #define CHROME_NACL_NACL_LISTENER_H_
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
+#include "base/memory/shared_memory.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/threading/thread.h"
 #include "components/nacl/common/nacl_types.h"
 #include "components/nacl/loader/nacl_trusted_listener.h"
 #include "ipc/ipc_listener.h"
 
 namespace base {
 class MessageLoopProxy;
 }
 
@@ skipping 17 matching lines @@
   void set_prereserved_sandbox_size(size_t prereserved_sandbox_size) {
     prereserved_sandbox_size_ = prereserved_sandbox_size;
   }
 #endif
 #if defined(OS_POSIX)
   void set_number_of_cores(int number_of_cores) {
     number_of_cores_ = number_of_cores;
   }
 #endif
 
+  void* crash_info_shmem_memory() const { return crash_info_shmem_->memory(); }
+
  private:
   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
 
   void OnStart(const nacl::NaClStartParams& params);
 
   // A channel back to the browser.
   scoped_ptr<IPC::SyncChannel> channel_;
 
   // A filter that allows other threads to use the channel.
   scoped_refptr<IPC::SyncMessageFilter> filter_;
 
   base::WaitableEvent shutdown_event_;
   base::Thread io_thread_;
 
 #if defined(OS_LINUX)
   size_t prereserved_sandbox_size_;
 #endif
 #if defined(OS_POSIX)
   // The outer sandbox on Linux and OSX prevents
   // sysconf(_SC_NPROCESSORS) from working; in Windows, there are no
   // problems with invoking GetSystemInfo.  Therefore, only in
   // OS_POSIX do we need to supply the number of cores into the
   // NaClChromeMainArgs object.
   int number_of_cores_;
 #endif
 
+  scoped_ptr<base::SharedMemory> crash_info_shmem_;
+
   scoped_refptr<NaClTrustedListener> trusted_listener_;
 
   // Used to identify what thread we're on.
   base::MessageLoop* main_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(NaClListener);
 };
 
 #endif  // CHROME_NACL_NACL_LISTENER_H_