Move wm/core to wm namespace.

ash/desktop_background/desktop_background_view.cc

Index: ash/desktop_background/desktop_background_view.cc
diff --git a/ash/desktop_background/desktop_background_view.cc b/ash/desktop_background/desktop_background_view.cc
index 245df7453da0c511d905e3dc644a479a0e70e868..0f14604d73153845d94c82caf9ef697185d43a73 100644
--- a/ash/desktop_background/desktop_background_view.cc
+++ b/ash/desktop_background/desktop_background_view.cc
@@ -191,7 +191,7 @@ views::Widget* CreateDesktopBackground(aura::Window* root_window,
   desktop_widget->SetContentsView(
       new LayerControlView(new DesktopBackgroundView()));
   int animation_type = wallpaper_delegate->GetAnimationType();
-  views::corewm::SetWindowVisibilityAnimationType(
+  wm::SetWindowVisibilityAnimationType(
       desktop_widget->GetNativeView(), animation_type);
 
   RootWindowController* root_window_controller =
@@ -205,18 +205,18 @@ views::Widget* CreateDesktopBackground(aura::Window* root_window,
   if (wallpaper_delegate->ShouldShowInitialAnimation() ||
       root_window_controller->animating_wallpaper_controller() ||
       Shell::GetInstance()->session_state_delegate()->NumberOfLoggedInUsers()) {
-    views::corewm::SetWindowVisibilityAnimationTransition(
-        desktop_widget->GetNativeView(), views::corewm::ANIMATE_SHOW);
+    wm::SetWindowVisibilityAnimationTransition(
+        desktop_widget->GetNativeView(), wm::ANIMATE_SHOW);
     int duration_override = wallpaper_delegate->GetAnimationDurationOverride();
     if (duration_override) {
-      views::corewm::SetWindowVisibilityAnimationDuration(
+      wm::SetWindowVisibilityAnimationDuration(
           desktop_widget->GetNativeView(),
           base::TimeDelta::FromMilliseconds(duration_override));
     }
   } else {
     // Disable animation if transition to login screen from an empty background.
-    views::corewm::SetWindowVisibilityAnimationTransition(
-        desktop_widget->GetNativeView(), views::corewm::ANIMATE_NONE);
+    wm::SetWindowVisibilityAnimationTransition(
+        desktop_widget->GetNativeView(), wm::ANIMATE_NONE);
   }
 
   desktop_widget->SetBounds(params.parent->bounds());