Pepper: Narrow locking at llc subprocess start.

ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.h

 // Copyright (c) 2012 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 NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PNACL_TRANSLATE_THREAD_H_
 #define NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PNACL_TRANSLATE_THREAD_H_
 
 #include <deque>
 #include <vector>
 
@@ skipping 74 matching lines @@
   nacl::scoped_ptr<NaClThread> translate_thread_;
 
   // Used to guard llc_subprocess and ld_subprocess
   struct NaClMutex subprocess_mu_;
   nacl::scoped_ptr<NaClSubprocess> llc_subprocess_;
   nacl::scoped_ptr<NaClSubprocess> ld_subprocess_;
   // Used to ensure the subprocesses don't get shutdown more than once.
   bool llc_subprocess_active_;
   bool ld_subprocess_active_;
 
+  bool subprocesses_aborted_;
+
   // Condition variable to synchronize communication with the SRPC thread.
   // SRPC thread waits on this condvar if data_buffers_ is empty (meaning
   // there is no bitcode to send to the translator), and the main thread
   // appends to data_buffers_ and signals it when it receives bitcode.
   struct NaClCondVar buffer_cond_;
   // Mutex for buffer_cond_.
   struct NaClMutex cond_mu_;
   // Data buffers from FileDownloader are enqueued here to pass from the
   // main thread to the SRPC thread. Protected by cond_mu_
   std::deque<std::vector<char> > data_buffers_;
@@ skipping 12 matching lines @@
   PP_PNaClOptions* pnacl_options_;
   nacl::string architecture_attributes_;
   PnaclCoordinator* coordinator_;
   Plugin* plugin_;
  private:
   NACL_DISALLOW_COPY_AND_ASSIGN(PnaclTranslateThread);
 };
 
 }
 #endif // NATIVE_CLIENT_SRC_TRUSTED_PLUGIN_PNACL_TRANSLATE_THREAD_H_