[ash-md] Added different highlighting modes to the InkDropImpl.

ui/views/controls/button/md_text_button.h

Index: ui/views/controls/button/md_text_button.h
diff --git a/ui/views/controls/button/md_text_button.h b/ui/views/controls/button/md_text_button.h
index 40630b9725b794af12672c6e511e35262355b0d4..b691b0f0d2dc600fd32d68d629a4cae32c593bd6 100644
--- a/ui/views/controls/button/md_text_button.h
+++ b/ui/views/controls/button/md_text_button.h
@@ -39,11 +39,11 @@ class VIEWS_EXPORT MdTextButton : public LabelButton {
   void OnFocus() override;
   void OnBlur() override;
   void OnNativeThemeChanged(const ui::NativeTheme* theme) override;
+  std::unique_ptr<InkDrop> CreateInkDrop() override;
   std::unique_ptr<views::InkDropRipple> CreateInkDropRipple() const override;
   std::unique_ptr<views::InkDropHighlight> CreateInkDropHighlight()
       const override;
   SkColor GetInkDropBaseColor() const override;
-  bool ShouldShowInkDropForFocus() const override;
   void SetEnabledTextColors(SkColor color) override;
   void SetText(const base::string16& text) override;
   void AdjustFontSize(int size_delta) override;