ash: Fix variable names and setters in ShelfLayoutManager and tests

ash/wm/panels/panel_layout_manager_unittest.cc

Index: ash/wm/panels/panel_layout_manager_unittest.cc
diff --git a/ash/wm/panels/panel_layout_manager_unittest.cc b/ash/wm/panels/panel_layout_manager_unittest.cc
index 826d697387a114cd7a8a1ccdc5211e93a4407918..ca1204244e1702bf283d2b860b2b6dfdaf8195a9 100644
--- a/ash/wm/panels/panel_layout_manager_unittest.cc
+++ b/ash/wm/panels/panel_layout_manager_unittest.cc
@@ -221,7 +221,7 @@ class PanelLayoutManagerTest : public test::AshTestBase {
   void SetShelfAutoHideBehavior(aura::Window* window,
                                 ShelfAutoHideBehavior behavior) {
     Shelf* shelf = Shelf::ForWindow(window);
-    shelf->shelf_layout_manager()->SetAutoHideBehavior(behavior);
+    shelf->SetAutoHideBehavior(behavior);
     test::ShelfViewTestAPI test_api(GetShelfView(shelf));
     test_api.RunMessageLoopUntilAnimationsDone();
   }