Moved ButtonInkDropDelegate logic into InkDropHostView and deleted InkDropDelegates.

ui/views/animation/button_ink_drop_delegate.h

-// Copyright 2015 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_BUTTON_INK_DROP_DELEGATE_H_
-#define UI_VIEWS_ANIMATION_BUTTON_INK_DROP_DELEGATE_H_
-
-#include <memory>
-
-#include "base/macros.h"
-#include "ui/events/event_handler.h"
-#include "ui/gfx/geometry/point.h"
-#include "ui/views/animation/ink_drop_delegate.h"
-#include "ui/views/views_export.h"
-
-namespace ui {
-class ScopedTargetHandler;
-}
-
-namespace views {
-
-class InkDrop;
-class InkDropHost;
-class View;
-
-// An InkDropDelegate that handles animations for things that act like buttons.
-class VIEWS_EXPORT ButtonInkDropDelegate : public InkDropDelegate,
-                                           public ui::EventHandler {
- public:
-  ButtonInkDropDelegate(InkDropHost* ink_drop_host, View* view);
-  ~ButtonInkDropDelegate() override;
-
-  const gfx::Point& last_ink_drop_location() const {
-    return last_ink_drop_location_;
-  }
-  void set_last_ink_drop_location(const gfx::Point& point) {
-    last_ink_drop_location_ = point;
-  }
-
-  // InkDropDelegate:
-  void OnAction(InkDropState state) override;
-  void SnapToActivated() override;
-  void SetHovered(bool is_hovered) override;
-  InkDropState GetTargetInkDropState() const override;
-  InkDrop* GetInkDrop() override;
-
-  // ui::EventHandler:
-  void OnMouseEvent(ui::MouseEvent* event) override;
-  void OnGestureEvent(ui::GestureEvent* event) override;
-
- private:
-  // An instance of ScopedTargetHandler allowing |this| to handle events.
-  std::unique_ptr<ui::ScopedTargetHandler> target_handler_;
-
-  // Parent InkDropHost (typically a View) that hosts the ink ripple animations.
-  InkDropHost* ink_drop_host_;
-
-  // Location of the last ink drop triggering event in coordinate system of the
-  // ctor argument |view|.
-  gfx::Point last_ink_drop_location_;
-
-  // Animation controller for the ink drop ripple effect.
-  std::unique_ptr<InkDrop> ink_drop_;
-
-  DISALLOW_COPY_AND_ASSIGN(ButtonInkDropDelegate);
-};
-
-}  // namespace views
-
-#endif  // UI_VIEWS_ANIMATION_BUTTON_INK_DROP_DELEGATE_H_