GPU Watchdog to check I/O before terminating GPU process

content/gpu/gpu_watchdog_thread.h

Index: content/gpu/gpu_watchdog_thread.h
diff --git a/content/gpu/gpu_watchdog_thread.h b/content/gpu/gpu_watchdog_thread.h
index c8e00952b26bf8e6c6fe717b02d054bc12574dc9..b243cb8d625c5dae30dc06769e81589de3b158fa 100644
--- a/content/gpu/gpu_watchdog_thread.h
+++ b/content/gpu/gpu_watchdog_thread.h
@@ -127,6 +127,13 @@ class GpuWatchdogThread : public base::Thread,
   base::Time check_time_;
   base::TimeTicks check_timeticks_;
 
+  // This specifies whether to use writing to a temp file as an additional step
+  // before crashing the process. That is used to allow the I/O queue to clear
+  // and give the watched thread more time to unblock in case it is blocked on
+  // a hard fault or other I/O.
+  bool use_temp_file_for_io_checking_;
+  base::TimeDelta io_check_duration_;
+
 #if defined(OS_CHROMEOS)
   FILE* tty_file_;
 #endif