[In progress] Monitor suspend code

chromeos/dbus/power_manager_client.h

Index: chromeos/dbus/power_manager_client.h
diff --git a/chromeos/dbus/power_manager_client.h b/chromeos/dbus/power_manager_client.h
index b62a543290da1148093f9b340dc2731c6a78758d..28073733398e031f1e5b9668bc61dcac322406d1 100644
--- a/chromeos/dbus/power_manager_client.h
+++ b/chromeos/dbus/power_manager_client.h
@@ -26,6 +26,7 @@ namespace chromeos {
 typedef base::Callback<void(int64)> CalculateIdleTimeCallback;
 typedef base::Callback<void(void)> IdleNotificationCallback;
 typedef base::Callback<void(uint32)> PowerStateRequestIdCallback;
+typedef base::Callback<void(void)> SuspendImminentCallback;
 
 // Callback used for getting the current screen brightness.  The param is in the
 // range [0.0, 100.0].
@@ -66,6 +67,9 @@ class CHROMEOS_EXPORT PowerManagerClient {
     // Called when a request is received to dim or undim the screen in software
     // (as opposed to the more-common method of adjusting the backlight).
     virtual void ScreenDimmingRequested(ScreenDimmingState state) {}
+
+    // Called when the system suspends.
+    virtual void DelaySuspend() {}
   };
 
   enum UpdateRequestType {