Refactor menu controller to isolate aura dependency.

ui/views/touchui/touch_selection_controller_impl.cc

Index: ui/views/touchui/touch_selection_controller_impl.cc
diff --git a/ui/views/touchui/touch_selection_controller_impl.cc b/ui/views/touchui/touch_selection_controller_impl.cc
index 316fe3bc5f3969007763fe42b2d3895fae15d709..b101072e9c8c24e52d6368a7b3460f725ee93f9f 100644
--- a/ui/views/touchui/touch_selection_controller_impl.cc
+++ b/ui/views/touchui/touch_selection_controller_impl.cc
@@ -7,6 +7,7 @@
 #include "base/time/time.h"
 #include "grit/ui_resources.h"
 #include "grit/ui_strings.h"
+#include "ui/aura/window.h"
 #include "ui/aura/client/cursor_client.h"
 #include "ui/aura/env.h"
 #include "ui/base/resource/resource_bundle.h"
@@ -18,7 +19,6 @@
 #include "ui/gfx/size.h"
 #include "ui/views/widget/widget.h"
 #include "ui/wm/core/masked_window_targeter.h"
-#include "ui/wm/core/shadow_types.h"
 #include "ui/wm/core/window_animations.h"
 
 namespace {
@@ -80,7 +80,7 @@ views::Widget* CreateTouchSelectionPopupWidget(
   params.parent = context;
   params.delegate = widget_delegate;
   widget->Init(params);
-  SetShadowType(widget->GetNativeView(), wm::SHADOW_TYPE_NONE);
+  widget->SetHasActivationShadow(false);
   return widget;
 }