PreShutdown       629 ash/shell.cc     delegate_->PreShutdown();
PreShutdown        42 ash/shell/shell_delegate_impl.h   virtual void PreShutdown() OVERRIDE;
PreShutdown        90 ash/shell_delegate.h   virtual void PreShutdown() = 0;
PreShutdown        38 ash/test/test_shell_delegate.h   virtual void PreShutdown() OVERRIDE;
PreShutdown        55 chrome/browser/ui/ash/chrome_shell_delegate.h   virtual void PreShutdown() OVERRIDE;