Window ownership -> WindowTreeHost

ash/wm/toplevel_window_event_handler.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/wm/toplevel_window_event_handler.h"
 
 #include "ash/shell.h"
 #include "ash/wm/resize_shadow_controller.h"
 #include "ash/wm/window_resizer.h"
 #include "ash/wm/window_state.h"
@@ skipping 365 matching lines @@
   // TODO(tdresser): Use gfx::PointF. See crbug.com/337824.
   gfx::Point drag_location;
   if (move_source == aura::client::WINDOW_MOVE_SOURCE_TOUCH &&
       aura::Env::GetInstance()->is_touch_down()) {
     gfx::PointF drag_location_f;
     bool has_point = ui::GestureRecognizer::Get()->
         GetLastTouchPointForTarget(source, &drag_location_f);
     drag_location = gfx::ToFlooredPoint(drag_location_f);
     DCHECK(has_point);
   } else {
-    drag_location = root_window->GetDispatcher()->GetLastMouseLocationInRoot();
+    drag_location =
+        root_window->GetHost()->dispatcher()->GetLastMouseLocationInRoot();
     aura::Window::ConvertPointToTarget(
         root_window, source->parent(), &drag_location);
   }
   // Set the cursor before calling AttemptToStartDrag(), as that will
   // eventually call LockCursor() and prevent the cursor from changing.
   aura::client::CursorClient* cursor_client =
       aura::client::GetCursorClient(root_window);
   if (cursor_client)
     cursor_client->SetCursor(ui::kCursorPointer);
   if (!AttemptToStartDrag(source, drag_location, HTCAPTION, move_source))
@@ skipping 197 matching lines @@
 
 void ToplevelWindowEventHandler::ResizerWindowDestroyed() {
   // We explicitly don't invoke RevertDrag() since that may do things to window.
   // Instead we destroy the resizer.
   window_resizer_.reset();
 
   CompleteDrag(DRAG_REVERT);
 }
 
 }  // namespace ash