Refactor ShouldLockScreenBeforeSuspending to ShouldLockScreenAutomatically

ash/mus/shell_delegate_mus.cc

Index: ash/mus/shell_delegate_mus.cc
diff --git a/ash/mus/shell_delegate_mus.cc b/ash/mus/shell_delegate_mus.cc
index bb6bf7561dd581c71bcbac2dc5675d6c1255695b..16fb74d9134bc696d721ecbcc619e845ec2e24eb 100644
--- a/ash/mus/shell_delegate_mus.cc
+++ b/ash/mus/shell_delegate_mus.cc
@@ -48,7 +48,7 @@ class SessionStateDelegateStub : public SessionStateDelegate {
   bool IsActiveUserSessionStarted() const override { return true; }
   bool CanLockScreen() const override { return true; }
   bool IsScreenLocked() const override { return screen_locked_; }
-  bool ShouldLockScreenBeforeSuspending() const override { return false; }
+  bool ShouldLockScreenAutomatically() const override { return false; }
   void LockScreen() override {
     screen_locked_ = true;
     NOTIMPLEMENTED();