Refactoring to make adding ink drop animations easier

ui/views/view.h

 // 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.
 
 #ifndef UI_VIEWS_VIEW_H_
 #define UI_VIEWS_VIEW_H_
 
 #include <algorithm>
 #include <map>
 #include <set>
@@ skipping 49 matching lines @@
 }
 
 namespace views {
 
 class Background;
 class Border;
 class ContextMenuController;
 class DragController;
 class FocusManager;
 class FocusTraversable;
+class InkDropDelegate;
 class LayoutManager;
 class NativeViewAccessibility;
 class ScrollView;
 class Widget;
 
 namespace internal {
 class PreEventDispatchHandler;
 class PostEventDispatchHandler;
 class RootView;
 }
@@ skipping 1047 matching lines @@
   virtual void ReorderLayers();
 
   // This reorders the immediate children of |*parent_layer| to match the
   // order of the view tree. Child layers which are owned by a view are
   // reordered so that they are below any child layers not owned by a view.
   // Widget::ReorderNativeViews() should be called to reorder any child layers
   // with an associated view. Widget::ReorderNativeViews() may reorder layers
   // below layers owned by a view.
   virtual void ReorderChildLayers(ui::Layer* parent_layer);
 
+  // Animations ----------------------------------------------------------------
+
+  virtual InkDropDelegate* GetInkDropDelegate() const;
+
   // Input ---------------------------------------------------------------------
 
   virtual DragInfo* GetDragInfo();
 
   // Focus ---------------------------------------------------------------------
 
   // Returns last value passed to SetFocusable(). Use IsFocusable() to determine
   // if a view can take focus right now.
   bool focusable() const { return focusable_; }
 
@@ skipping 415 matching lines @@
   // Belongs to this view, but it's reference-counted on some platforms
   // so we can't use a scoped_ptr. It's dereferenced in the destructor.
   NativeViewAccessibility* native_view_accessibility_;
 
   DISALLOW_COPY_AND_ASSIGN(View);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_VIEW_H_