Rename WindowTreeHost functions to indicate pixels/dips.

ui/aura/mus/drag_drop_controller_mus.cc

 // Copyright 2016 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 "ui/aura/mus/drag_drop_controller_mus.h"
 
 #include <map>
 #include <string>
 #include <vector>
 
@@ skipping 180 matching lines @@
   return drag_drop_delegate->OnDragUpdated(*event);
 }
 
 std::unique_ptr<ui::DropTargetEvent>
 DragDropControllerMus::CreateDropTargetEvent(Window* window,
                                              uint32_t event_flags,
                                              const gfx::Point& screen_location,
                                              uint32_t effect_bitmask) {
   DCHECK(window->GetHost());
   gfx::Point root_location = screen_location;
-  window->GetHost()->ConvertPointFromNativeScreen(&root_location);
+  window->GetHost()->ConvertScreenInPixelsToDIP(&root_location);
   gfx::Point location = root_location;
   Window::ConvertPointToTarget(window->GetRootWindow(), window, &location);
   std::unique_ptr<ui::DropTargetEvent> event =
       base::MakeUnique<ui::DropTargetEvent>(
           current_drag_state_ ? current_drag_state_->drag_data
                               : *(os_exchange_data_.get()),
           location, root_location, effect_bitmask);
   event->set_flags(event_flags);
   return event;
 }
 
 }  // namespace aura