[ash-md] Animates ToggleButton highlight to move it in sync with the thumb

ui/views/controls/button/custom_button_unittest.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 "ui/views/controls/button/custom_button.h"
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "build/build_config.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/layout.h"
 #include "ui/display/screen.h"
 #include "ui/events/event_utils.h"
 #include "ui/events/test/event_generator.h"
 #include "ui/views/animation/ink_drop_host.h"
 #include "ui/views/animation/test/ink_drop_host_view_test_api.h"
 #include "ui/views/animation/test/test_ink_drop.h"
 #include "ui/views/animation/test/test_ink_drop_host.h"
 #include "ui/views/context_menu_controller.h"
 #include "ui/views/controls/button/checkbox.h"
 #include "ui/views/controls/button/image_button.h"
 #include "ui/views/controls/button/label_button.h"
 #include "ui/views/controls/button/menu_button.h"
 #include "ui/views/controls/button/radio_button.h"
+#include "ui/views/controls/button/toggle_button.h"
 #include "ui/views/controls/link.h"
 #include "ui/views/controls/textfield/textfield.h"
 #include "ui/views/test/views_test_base.h"
 
 #if defined(USE_AURA)
 #include "ui/aura/test/test_cursor_client.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #endif
 
@@ skipping 94 matching lines @@
   Widget* widget() { return widget_.get(); }
   TestCustomButton* button() { return button_; }
   void SetDraggedView(View* dragged_view) {
     widget_->dragged_view_ = dragged_view;
   }
 
   void SimulateKeyEvent(ui::KeyEvent* event) { widget()->OnKeyEvent(event); }
 
  private:
   std::unique_ptr<Widget> widget_;
-  TestCustomButton* button_;
+  TestCustomButton* button_ = nullptr;
 
   DISALLOW_COPY_AND_ASSIGN(CustomButtonTest);
 };
 
 // Tests that hover state changes correctly when visiblity/enableness changes.
 TEST_F(CustomButtonTest, HoverStateOnVisibilityChange) {
   ui::test::EventGenerator generator(widget()->GetNativeWindow());
 
   generator.PressLeftButton();
   EXPECT_EQ(CustomButton::STATE_PRESSED, button()->state());
@@ skipping 178 matching lines @@
 
   Checkbox checkbox(text);
   EXPECT_TRUE(CustomButton::AsCustomButton(&checkbox));
 
   RadioButton radio_button(text, 0);
   EXPECT_TRUE(CustomButton::AsCustomButton(&radio_button));
 
   MenuButton menu_button(text, NULL, false);
   EXPECT_TRUE(CustomButton::AsCustomButton(&menu_button));
 
+  ToggleButton toggle_button(NULL);
+  EXPECT_TRUE(CustomButton::AsCustomButton(&toggle_button));
+
   Label label;
   EXPECT_FALSE(CustomButton::AsCustomButton(&label));
 
   Link link(text);
   EXPECT_FALSE(CustomButton::AsCustomButton(&link));
 
   Textfield textfield;
   EXPECT_FALSE(CustomButton::AsCustomButton(&textfield));
 }
 
@@ skipping 233 matching lines @@
   EXPECT_EQ(CustomButton::STATE_PRESSED, button()->state());
   EXPECT_FALSE(button()->pressed());
 
   ui::KeyEvent space_release(ui::ET_KEY_RELEASED, ui::VKEY_SPACE, ui::EF_NONE);
   SimulateKeyEvent(&space_release);
   EXPECT_EQ(CustomButton::STATE_NORMAL, button()->state());
   EXPECT_TRUE(button()->pressed());
 }
 
 }  // namespace views