Replace WM shadow types (on/off) and styles (small/inactive/active)

ash/common/wm/overview/window_grid.cc

Index: ash/common/wm/overview/window_grid.cc
diff --git a/ash/common/wm/overview/window_grid.cc b/ash/common/wm/overview/window_grid.cc
index 428e046dbc5cfef92fb4fc51a030df6877fc98b9..e4aa51319068edd380c76d900582ff16cd9e6822 100644
--- a/ash/common/wm/overview/window_grid.cc
+++ b/ash/common/wm/overview/window_grid.cc
@@ -44,6 +44,7 @@
 #include "ui/views/view.h"
 #include "ui/views/widget/widget.h"
 #include "ui/wm/core/shadow.h"
+#include "ui/wm/core/shadow_types.h"
 #include "ui/wm/core/window_animations.h"
 
 namespace ash {
@@ -675,7 +676,7 @@ void WindowGrid::InitSelectionWidget(WindowSelector::Direction direction) {
   widget_window->SetName("OverviewModeSelector");
 
   selector_shadow_.reset(new ::wm::Shadow());
-  selector_shadow_->Init(::wm::Shadow::STYLE_ACTIVE);
+  selector_shadow_->Init(::wm::ShadowElevation::LARGE);
   selector_shadow_->layer()->SetVisible(true);
   selection_widget_->GetLayer()->SetMasksToBounds(false);
   selection_widget_->GetLayer()->Add(selector_shadow_->layer());