Revert of Moving coordinate conversion methods from ash/wm to ui/wm. (https://codereview.chromium.org/425363002/)

Reason for revert:
Build break.

../../ash/display/mouse_cursor_event_filter_ozone.cc:21:7:error: no member named 'ConvertPointToScreen' in namespace 'ash::wm'
  wm::ConvertPointToScreen(target, &point_in_screen);
  ~~~~^
../../ash/display/mouse_cursor_event_filter_ozone.cc:45:7:error: no member named 'ConvertPointFromScreen' in namespace 'ash::wm'
  wm::ConvertPointFromScreen(root_at_point, &point_in_root);
  ~~~~^
../../ash/display/mouse_cursor_event_filter_ozone.cc:86:7:error: no member named 'ConvertPointFromScreen' in namespace 'ash::wm'
  wm::ConvertPointFromScreen(dst_root, &point_in_dst_screen);
  ~~~~^


Original issue's description:
> Moving coordinate conversion methods from ash/wm to ui/wm.
> 
> Moving ConvertPointToScreen and ConvertPointFromScreen from ash::wm into
> aura::Window. The suggestion to do this was made here:
> https://codereview.chromium.org/420603011/diff/1/athena/wm/coordinate_conversion.h
> 
> BUG=NONE
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=287609

TBR=oshima@chromium.org,ben@chromium.org,sky@chromium.org,mfomitchev@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=NONE

Review URL: https://codereview.chromium.org/445703005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@287626 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 12 insertions, 0 deletions

diff --git a/ash/wm/coordinate_conversion.cc b/ash/wm/coordinate_conversion.cc
index 258f976..991e7d4 100644
--- a/ash/wm/coordinate_conversion.cc
+++ b/ash/wm/coordinate_conversion.cc
@@ -31,5 +31,17 @@ aura::Window* GetRootWindowMatching(const gfx::Rect& rect) {
       GetRootWindowForDisplayId(display.id());
 }
 
+void ConvertPointToScreen(const aura::Window* window, gfx::Point* point) {
+  CHECK(aura::client::GetScreenPositionClient(window->GetRootWindow()));
+  aura::client::GetScreenPositionClient(window->GetRootWindow())->
+      ConvertPointToScreen(window, point);
+}
+
+void ConvertPointFromScreen(const aura::Window* window,
+                            gfx::Point* point_in_screen) {
+  aura::client::GetScreenPositionClient(window->GetRootWindow())->
+      ConvertPointFromScreen(window, point_in_screen);
+}
+
 }  // namespace wm
 }  // namespace ash