Enabled tests to control material design ink drop animations.

ui/views/animation/test/ink_drop_hover_test_api.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_TEST_INK_DROP_HOVER_TEST_API_H_
+#define UI_VIEWS_ANIMATION_TEST_INK_DROP_HOVER_TEST_API_H_
+
+#include <vector>
+
+#include "base/macros.h"
+#include "ui/compositor/test/multi_layer_animator_test_controller.h"
+#include "ui/compositor/test/multi_layer_animator_test_controller_delegate.h"
+
+namespace ui {
+class LayerAnimator;
+}  // namespace ui
+
+namespace views {
+class InkDropHover;
+
+namespace test {
+
+// Test API to provide internal access to an InkDropHover instance. This can
+// also be used to control the animations via the
+// ui::test::MultiLayerAnimatorTestController API.
+class InkDropHoverTestApi
+    : public ui::test::MultiLayerAnimatorTestController,
+      public ui::test::MultiLayerAnimatorTestControllerDelegate {
+ public:
+  explicit InkDropHoverTestApi(InkDropHover* ink_drop_hover);
+  ~InkDropHoverTestApi() override;
+
+  // MultiLayerAnimatorTestControllerDelegate:
+  std::vector<ui::LayerAnimator*> GetLayerAnimators() override;
+
+ protected:
+  InkDropHover* ink_drop_hover() {
+    return static_cast<const InkDropHoverTestApi*>(this)->ink_drop_hover();
+  }
+
+  InkDropHover* ink_drop_hover() const { return ink_drop_hover_; }
+
+ private:
+  // The InkDropedAnimation to provide internal access to.
+  InkDropHover* ink_drop_hover_;
+
+  DISALLOW_COPY_AND_ASSIGN(InkDropHoverTestApi);
+};
+
+}  // namespace test
+}  // namespace views
+
+#endif  // UI_VIEWS_ANIMATION_TEST_INK_DROP_HOVER_TEST_API_H_