Removes aura dependencies from WindowPositioner

ash/desktop_background/desktop_background_view.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ash/desktop_background/desktop_background_view.h"
 
 #include <limits>
 
 #include "ash/ash_export.h"
 #include "ash/desktop_background/desktop_background_controller.h"
@@ skipping 203 matching lines @@
   views::Widget* desktop_widget = new views::Widget;
   views::Widget::InitParams params(
       views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
   if (controller->GetWallpaper().isNull())
     params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
   params.parent = root_window->GetChildById(container_id);
   desktop_widget->Init(params);
   desktop_widget->SetContentsView(
       new LayerControlView(new DesktopBackgroundView()));
   int animation_type = wallpaper_delegate->GetAnimationType();
-  wm::SetWindowVisibilityAnimationType(
-      desktop_widget->GetNativeView(), animation_type);
+  ::wm::SetWindowVisibilityAnimationType(desktop_widget->GetNativeView(),
+                                         animation_type);
 
   RootWindowController* root_window_controller =
       GetRootWindowController(root_window);
 
   // Enable wallpaper transition for the following cases:
   // 1. Initial(OOBE) wallpaper animation.
   // 2. Wallpaper fades in from a non empty background.
   // 3. From an empty background, chrome transit to a logged in user session.
   // 4. From an empty background, guest user logged in.
   if (wallpaper_delegate->ShouldShowInitialAnimation() ||
       root_window_controller->animating_wallpaper_controller() ||
       Shell::GetInstance()->session_state_delegate()->NumberOfLoggedInUsers()) {
-    wm::SetWindowVisibilityAnimationTransition(
-        desktop_widget->GetNativeView(), wm::ANIMATE_SHOW);
+    ::wm::SetWindowVisibilityAnimationTransition(
+        desktop_widget->GetNativeView(), ::wm::ANIMATE_SHOW);
     int duration_override = wallpaper_delegate->GetAnimationDurationOverride();
     if (duration_override) {
-      wm::SetWindowVisibilityAnimationDuration(
+      ::wm::SetWindowVisibilityAnimationDuration(
           desktop_widget->GetNativeView(),
           base::TimeDelta::FromMilliseconds(duration_override));
     }
   } else {
     // Disable animation if transition to login screen from an empty background.
-    wm::SetWindowVisibilityAnimationTransition(
-        desktop_widget->GetNativeView(), wm::ANIMATE_NONE);
+    ::wm::SetWindowVisibilityAnimationTransition(
+        desktop_widget->GetNativeView(), ::wm::ANIMATE_NONE);
   }
 
   desktop_widget->SetBounds(params.parent->bounds());
   return desktop_widget;
 }
 
 }  // namespace ash