Index: chrome/browser/extensions/shell_window_registry.cc |
diff --git a/chrome/browser/extensions/shell_window_registry.cc b/chrome/browser/extensions/shell_window_registry.cc |
index f7495f83e8a41dae477b8695fefbd753b2ea7506..4f7a87384dc33702ced00a6f0726f7c7efc88d46 100644 |
--- a/chrome/browser/extensions/shell_window_registry.cc |
+++ b/chrome/browser/extensions/shell_window_registry.cc |
@@ -67,8 +67,9 @@ void ShellWindowRegistry::ShellWindowIconChanged(ShellWindow* shell_window) { |
} |
void ShellWindowRegistry::RemoveShellWindow(ShellWindow* shell_window) { |
- shell_windows_.erase(shell_window); |
- FOR_EACH_OBSERVER(Observer, observers_, OnShellWindowRemoved(shell_window)); |
+ size_t num_erased = shell_windows_.erase(shell_window); |
+ if (num_erased > 0) |
+ FOR_EACH_OBSERVER(Observer, observers_, OnShellWindowRemoved(shell_window)); |
} |
void ShellWindowRegistry::AddObserver(Observer* observer) { |