ash: Use SessionController instead of SessionStateDelegate

ash/system/chromeos/power/power_event_observer_unittest.cc

Index: ash/system/chromeos/power/power_event_observer_unittest.cc
diff --git a/ash/system/chromeos/power/power_event_observer_unittest.cc b/ash/system/chromeos/power/power_event_observer_unittest.cc
index 5d0b79f7a279d3e6a44a3da242772eb36c64a08c..d66204b03199b37a022bcda941dd4115c2d07d74 100644
--- a/ash/system/chromeos/power/power_event_observer_unittest.cc
+++ b/ash/system/chromeos/power/power_event_observer_unittest.cc
@@ -6,7 +6,6 @@
 
 #include <memory>
 
-#include "ash/common/test/test_session_state_delegate.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "base/time/time.h"
@@ -58,7 +57,7 @@ TEST_F(PowerEventObserverTest, LockBeforeSuspend) {
 
   // Check that the observer requests a suspend-readiness callback when it hears
   // that the system is about to suspend.
-  test::TestSessionStateDelegate::SetCanLockScreen(true);
+  SetCanLockScreen(true);
   SetShouldLockScreenAutomatically(true);
   observer_->SuspendImminent();
   EXPECT_EQ(1, client->GetNumPendingSuspendReadinessCallbacks());
@@ -96,7 +95,7 @@ TEST_F(PowerEventObserverTest, SetInvisibleBeforeSuspend) {
 
   // Tests that all the Compositors are marked invisible _after_ the screen lock
   // animations have completed.
-  test::TestSessionStateDelegate::SetCanLockScreen(true);
+  SetCanLockScreen(true);
   SetShouldLockScreenAutomatically(true);
 
   observer_->SuspendImminent();
@@ -115,7 +114,7 @@ TEST_F(PowerEventObserverTest, SetInvisibleBeforeSuspend) {
 TEST_F(PowerEventObserverTest, CanceledSuspend) {
   // Tests that the Compositors are not marked invisible if a suspend is
   // canceled or the system resumes before the lock screen is ready.
-  test::TestSessionStateDelegate::SetCanLockScreen(true);
+  SetCanLockScreen(true);
   SetShouldLockScreenAutomatically(true);
   observer_->SuspendImminent();
   EXPECT_EQ(1, GetNumVisibleCompositors());
@@ -137,7 +136,7 @@ TEST_F(PowerEventObserverTest, DelayResuspendForLockAnimations) {
   //
   // In this case, the observer should block the second suspend request until
   // the animations have completed.
-  test::TestSessionStateDelegate::SetCanLockScreen(true);
+  SetCanLockScreen(true);
   SetShouldLockScreenAutomatically(true);
 
   chromeos::PowerManagerClient* client =