Centered flood fill style ink drop ripples on mouse/touch points.

ash/shelf/shelf_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 "ash/shelf/shelf_view.h"
 
 #include <algorithm>
 #include <memory>
 
 #include "ash/ash_switches.h"
@@ skipping 1055 matching lines @@
       model_->items()[start_drag_index_].id);
   if (!item_delegate->IsDraggable()) {
     CancelDrag(-1);
     return;
   }
 
   // Move the view to the front so that it appears on top of other views.
   ReorderChildView(drag_view_, -1);
   bounds_animator_->StopAnimatingView(drag_view_);
 
-  drag_view_->OnDragStarted();
+  drag_view_->OnDragStarted(&event);
 }
 
 void ShelfView::ContinueDrag(const ui::LocatedEvent& event) {
   // Due to a syncing operation the application might have been removed.
   // Bail if it is gone.
   int current_index = view_model_->GetIndexOfView(drag_view_);
   DCHECK_NE(-1, current_index);
 
   ShelfItemDelegate* item_delegate =
       item_manager_->GetShelfItemDelegate(model_->items()[current_index].id);
@@ skipping 832 matching lines @@
 
 int ShelfView::CalculateShelfDistance(const gfx::Point& coordinate) const {
   const gfx::Rect bounds = GetBoundsInScreen();
   int distance = shelf_->SelectValueForShelfAlignment(
       bounds.y() - coordinate.y(), coordinate.x() - bounds.right(),
       bounds.x() - coordinate.x());
   return distance > 0 ? distance : 0;
 }
 
 }  // namespace ash