Move wm/core to wm namespace.

ash/wm/overview/scoped_window_copy.cc

Index: ash/wm/overview/scoped_window_copy.cc
diff --git a/ash/wm/overview/scoped_window_copy.cc b/ash/wm/overview/scoped_window_copy.cc
index 7368b45316bdf42d7b879d7c75b107a8d85483f1..c3fa51dbe52f74ab252cbff75beac654bcb4c453 100644
--- a/ash/wm/overview/scoped_window_copy.cc
+++ b/ash/wm/overview/scoped_window_copy.cc
@@ -42,8 +42,8 @@ views::Widget* CreateCopyOfWindow(aura::Window* target_root,
   widget->SetVisibilityChangedAnimationsEnabled(false);
   std::string name = src_window->name() + " (Copy)";
   widget->GetNativeWindow()->SetName(name);
-  views::corewm::SetShadowType(widget->GetNativeWindow(),
-                               views::corewm::SHADOW_TYPE_RECTANGULAR);
+  ::wm::SetShadowType(widget->GetNativeWindow(),
+                               ::wm::SHADOW_TYPE_RECTANGULAR);
 
   // Set the bounds in the target root window.
   gfx::Display target_display =
@@ -160,7 +160,7 @@ void CleanupWidgetAfterAnimationObserver::MaybeDestruct() {
 ScopedWindowCopy::ScopedWindowCopy(aura::Window* target_root,
                                    aura::Window* src_window) {
   scoped_ptr<ui::LayerTreeOwner> layer_owner =
-      views::corewm::RecreateLayers(src_window);
+      ::wm::RecreateLayers(src_window);
   widget_ = CreateCopyOfWindow(target_root, src_window, layer_owner->root());
   cleanup_observer_ =
       new CleanupWidgetAfterAnimationObserver(widget_, layer_owner.Pass());