Remove now-unnecessary wrappers around gfx::Screen::GetScreen()

ash/accelerators/accelerator_controller_unittest.cc

Index: ash/accelerators/accelerator_controller_unittest.cc
diff --git a/ash/accelerators/accelerator_controller_unittest.cc b/ash/accelerators/accelerator_controller_unittest.cc
index 5967a04113ccaf79941aaa1b2c04fa3edcdd4efe..b2eb9ca86b8cfbf2ea114ee89ce7b9fb9fe5d03c 100644
--- a/ash/accelerators/accelerator_controller_unittest.cc
+++ b/ash/accelerators/accelerator_controller_unittest.cc
@@ -646,8 +646,9 @@ TEST_F(AcceleratorControllerTest, CenterWindowAccelerator) {
 
   // Center the window using accelerator.
   GetController()->PerformActionIfEnabled(WINDOW_POSITION_CENTER);
-  gfx::Rect work_area =
-      Shell::GetScreen()->GetDisplayNearestWindow(window.get()).work_area();
+  gfx::Rect work_area = gfx::Screen::GetScreen()
+                            ->GetDisplayNearestWindow(window.get())
+                            .work_area();
   gfx::Rect bounds = window->GetBoundsInScreen();
   EXPECT_NEAR(bounds.x() - work_area.x(),
               work_area.right() - bounds.right(),