Index: chrome/browser/chromeos/login/ui/input_events_blocker.cc |
diff --git a/chrome/browser/chromeos/login/ui/input_events_blocker.cc b/chrome/browser/chromeos/login/ui/input_events_blocker.cc |
index 686c9070fde532f1a4f327d0040f40797effffa8..5207161d0964b16cc310bd65a7fee0c8fe804c16 100644 |
--- a/chrome/browser/chromeos/login/ui/input_events_blocker.cc |
+++ b/chrome/browser/chromeos/login/ui/input_events_blocker.cc |
@@ -11,12 +11,14 @@ |
namespace chromeos { |
InputEventsBlocker::InputEventsBlocker() { |
- ash::Shell::GetInstance()->PrependPreTargetHandler(this); |
+ if (ash::Shell::HasInstance()) |
+ ash::Shell::GetInstance()->PrependPreTargetHandler(this); |
VLOG(1) << "InputEventsBlocker " << this << " created."; |
} |
InputEventsBlocker::~InputEventsBlocker() { |
- ash::Shell::GetInstance()->RemovePreTargetHandler(this); |
+ if (ash::Shell::HasInstance()) |
+ ash::Shell::GetInstance()->RemovePreTargetHandler(this); |
VLOG(1) << "InputEventsBlocker " << this << " destroyed."; |
} |