Revert of Moving coordinate conversion methods from ash/wm to ui/wm.

ash/shelf/shelf_view.cc

Index: ash/shelf/shelf_view.cc
diff --git a/ash/shelf/shelf_view.cc b/ash/shelf/shelf_view.cc
index 5e4f00255c028296401e34233c241e8af1e0803f..cc0e1ae2836b73231bfd9e9bfa8663fd878f1089 100644
--- a/ash/shelf/shelf_view.cc
+++ b/ash/shelf/shelf_view.cc
@@ -55,7 +55,6 @@
 #include "ui/views/view_model.h"
 #include "ui/views/view_model_utils.h"
 #include "ui/views/widget/widget.h"
-#include "ui/wm/core/coordinate_conversion.h"
 
 using gfx::Animation;
 using views::View;
@@ -618,8 +617,9 @@
   gfx::Point pt = drag_and_drop_view->GetBoundsInScreen().CenterPoint();
   views::View::ConvertPointFromScreen(drag_and_drop_view, &pt);
   gfx::Point point_in_root = location_in_screen_coordinates;
-  ::wm::ConvertPointFromScreen(
-      ash::wm::GetRootWindowAt(location_in_screen_coordinates), &point_in_root);
+  ash::wm::ConvertPointFromScreen(
+      ash::wm::GetRootWindowAt(location_in_screen_coordinates),
+      &point_in_root);
   ui::MouseEvent event(ui::ET_MOUSE_PRESSED, pt, point_in_root, 0, 0);
   PointerPressedOnButton(drag_and_drop_view,
                          ShelfButtonHost::DRAG_AND_DROP,
@@ -640,8 +640,9 @@
       model_->ItemIndexByID(drag_and_drop_shelf_id_));
   ConvertPointFromScreen(drag_and_drop_view, &pt);
   gfx::Point point_in_root = location_in_screen_coordinates;
-  ::wm::ConvertPointFromScreen(
-      ash::wm::GetRootWindowAt(location_in_screen_coordinates), &point_in_root);
+  ash::wm::ConvertPointFromScreen(
+      ash::wm::GetRootWindowAt(location_in_screen_coordinates),
+      &point_in_root);
   ui::MouseEvent event(ui::ET_MOUSE_DRAGGED, pt, point_in_root, 0, 0);
   PointerDraggedOnButton(drag_and_drop_view,
                          ShelfButtonHost::DRAG_AND_DROP,
@@ -1009,8 +1010,8 @@
       delegate_->GetAppIDForShelfID(model_->items()[current_index].id);
 
   gfx::Point screen_location = event.root_location();
-  ::wm::ConvertPointToScreen(GetWidget()->GetNativeWindow()->GetRootWindow(),
-                             &screen_location);
+  ash::wm::ConvertPointToScreen(GetWidget()->GetNativeWindow()->GetRootWindow(),
+                                &screen_location);
 
   // To avoid ugly forwards and backwards flipping we use different constants
   // for ripping off / re-inserting the items.