Move wm/core to wm namespace.

ash/popup_message.cc

Index: ash/popup_message.cc
diff --git a/ash/popup_message.cc b/ash/popup_message.cc
index bd1aea45eb95b47d70d8707e29fde5d2f3191bae..f3217890a9e7b3e935d22e4bbaaf243b1a895ef6 100644
--- a/ash/popup_message.cc
+++ b/ash/popup_message.cc
@@ -194,10 +194,10 @@ PopupMessage::PopupMessage(const base::string16& caption,
   widget_ = view_->GetWidget();
 
   gfx::NativeView native_view = widget_->GetNativeView();
-  views::corewm::SetWindowVisibilityAnimationType(
-      native_view, views::corewm::WINDOW_VISIBILITY_ANIMATION_TYPE_VERTICAL);
-  views::corewm::SetWindowVisibilityAnimationTransition(
-      native_view, views::corewm::ANIMATE_HIDE);
+  wm::SetWindowVisibilityAnimationType(
+      native_view, wm::WINDOW_VISIBILITY_ANIMATION_TYPE_VERTICAL);
+  wm::SetWindowVisibilityAnimationTransition(
+      native_view, wm::ANIMATE_HIDE);
   view_->GetWidget()->Show();
 }
 
@@ -219,8 +219,8 @@ void PopupMessage::CancelHidingAnimation() {
     return;
 
   gfx::NativeView native_view = widget_->GetNativeView();
-  views::corewm::SetWindowVisibilityAnimationTransition(
-      native_view, views::corewm::ANIMATE_NONE);
+  wm::SetWindowVisibilityAnimationTransition(
+      native_view, wm::ANIMATE_NONE);
 }
 
 }  // namespace ash