Change default ink drop center points to center of contents bounds

ui/views/animation/ink_drop_host_view.h

 // 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.
 
 #ifndef UI_VIEWS_ANIMATION_INK_DROP_HOST_VIEW_H_
 #define UI_VIEWS_ANIMATION_INK_DROP_HOST_VIEW_H_
 
 #include <memory>
 
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/geometry/point.h"
+#include "ui/gfx/geometry/point_f.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/views/animation/ink_drop.h"
 #include "ui/views/animation/ink_drop_host.h"
 #include "ui/views/view.h"
 
 namespace views {
 class InkDropImpl;
 class InkDropMask;
 
 namespace test {
@@ skipping 104 matching lines @@
 
   // Returns an InkDropImpl with default configuration. The base implementation
   // of CreateInkDrop() delegates to this function.
   std::unique_ptr<InkDropImpl> CreateDefaultInkDropImpl();
 
  private:
   class InkDropGestureHandler;
   friend class InkDropGestureHandler;
   friend class test::InkDropHostViewTestApi;
 
+  gfx::PointF GetMirroredCenterPoint() const;

[bruthig, 2017/05/23 14:43:31]

nit: This doesn't appear to be used?

[Evan Stade, 2017/05/23 23:02:37]

Done.

+
   // The last user Event to trigger an ink drop ripple animation.
   std::unique_ptr<ui::LocatedEvent> last_ripple_triggering_event_;
 
   // Defines what type of |ink_drop_| to create.
   InkDropMode ink_drop_mode_;
 
   // Should not be accessed directly. Use GetInkDrop() instead.
   std::unique_ptr<InkDrop> ink_drop_;
 
   // Intentionally declared after |ink_drop_| so that it doesn't access a
   // destroyed |ink_drop_| during destruction.
   std::unique_ptr<InkDropGestureHandler> gesture_handler_;
 
   float ink_drop_visible_opacity_;
 
   // Determines whether the view was already painting to layer before adding ink
   // drop layer.
   bool old_paint_to_layer_;
 
   bool destroying_;
 
   std::unique_ptr<views::InkDropMask> ink_drop_mask_;
 
   DISALLOW_COPY_AND_ASSIGN(InkDropHostView);
 };
 }  // namespace views
 
 #endif  // UI_VIEWS_ANIMATION_INK_DROP_HOST_VIEW_H_