ui::LocatedEvent location() returns gfx::PointF

ui/app_list/views/apps_grid_view.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 "ui/app_list/views/apps_grid_view.h"
 
 #include <algorithm>
 #include <set>
 #include <string>
 
@@ skipping 424 matching lines @@
 
 void AppsGridView::InitiateDrag(AppListItemView* view,
                                 Pointer pointer,
                                 const ui::LocatedEvent& event) {
   DCHECK(view);
   if (drag_view_ || pulsing_blocks_model_.view_size())
     return;
 
   drag_view_ = view;
   drag_view_init_index_ = GetIndexOfView(drag_view_);
-  drag_view_offset_ = event.location();
+  drag_view_offset_ = gfx::ToFlooredPoint(event.location());
   drag_start_page_ = pagination_model_->selected_page();
   ExtractDragLocation(event, &drag_start_grid_view_);
   drag_view_start_ = gfx::Point(drag_view_->x(), drag_view_->y());
 }
 
 void AppsGridView::StartSettingUpSynchronousDrag() {
 #if defined(OS_WIN)
   if (!delegate_)
     return;
 
@@ skipping 747 matching lines @@
         GetWidget()->GetNativeWindow()->GetRootWindow(),
         GetWidget()->GetNativeWindow(),
         drag_point);
   }
 
   views::View::ConvertPointFromWidget(this, drag_point);
 #else
   // For non-aura, root location is not clearly defined but |drag_view_| does
   // not have the scale transform. So no round error would be introduced and
   // it's okay to use View::ConvertPointToTarget.
-  *drag_point = event.location();
+  *drag_point = gfx::ToFlooredPoint(event.location());
   views::View::ConvertPointToTarget(drag_view_, this, drag_point);
 #endif
 }
 
 void AppsGridView::CalculateDropTarget(const gfx::Point& drag_point,
                                        bool use_page_button_hovering) {
   if (EnableFolderDragDropUI()) {
     CalculateDropTargetWithFolderEnabled(drag_point, use_page_button_hovering);
     return;
   }
@@ skipping 867 matching lines @@
 void AppsGridView::SetAsFolderDroppingTarget(const Index& target_index,
                                              bool is_target_folder) {
   AppListItemView* target_view =
       static_cast<AppListItemView*>(
           GetViewAtSlotOnCurrentPage(target_index.slot));
   if (target_view)
     target_view->SetAsAttemptedFolderTarget(is_target_folder);
 }
 
 }  // namespace app_list