Move even more from WmShell to Shell

ash/wm/lock_state_controller_unittest.cc

Index: ash/wm/lock_state_controller_unittest.cc
diff --git a/ash/wm/lock_state_controller_unittest.cc b/ash/wm/lock_state_controller_unittest.cc
index b386dd79f0116b4800f48df91e37516fb2d11cee..a1484cf1d32da5aaac7ab021e0c617524853ad9e 100644
--- a/ash/wm/lock_state_controller_unittest.cc
+++ b/ash/wm/lock_state_controller_unittest.cc
@@ -328,7 +328,7 @@ class LockStateControllerTest : public AshTestBase {
   }
 
   void EnableMaximizeMode(bool enable) {
-    WmShell::Get()->maximize_mode_controller()->EnableMaximizeModeWindowManager(
+    Shell::Get()->maximize_mode_controller()->EnableMaximizeModeWindowManager(
         enable);
   }