Pepper: Narrow locking at llc subprocess start.

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

Index: ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.h
diff --git a/ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.h b/ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.h
index 4cdc304a8482c22b54c167914cb7567546435ae3..e55121235578f5c68fc7b4b19aebaf6863fbd4b1 100644
--- a/ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.h
+++ b/ppapi/native_client/src/trusted/plugin/pnacl_translate_thread.h
@@ -92,6 +92,8 @@ class PnaclTranslateThread {
   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