Remove pre-MD code related to tray/menu user profiles.

ash/common/system/user/button_from_view.h

Index: ash/common/system/user/button_from_view.h
diff --git a/ash/common/system/user/button_from_view.h b/ash/common/system/user/button_from_view.h
index 46d95cf98e8089251dab0769761403f8f32dee75..9a0ec25ca88705041792b0d77349285d0e085b29 100644
--- a/ash/common/system/user/button_from_view.h
+++ b/ash/common/system/user/button_from_view.h
@@ -9,7 +9,6 @@
 
 #include "ash/common/system/tray/tray_popup_ink_drop_style.h"
 #include "base/macros.h"
-#include "ui/gfx/geometry/insets.h"
 #include "ui/views/controls/button/custom_button.h"
 
 namespace views {
@@ -24,21 +23,12 @@ class ButtonFromView : public views::CustomButton {
  public:
   // The |content| is the content which is shown within the button. The
   // |button_listener| will be informed - if provided - when a button was
-  // pressed. If |highlight_on_hover| is set to true, the button will be
-  // highlighted upon hover and show the accessibility caret.
-  // The |tab_frame_inset| will be used to inset the blue tab frame inside the
-  // button.
-  // An accessible label gets computed based upon descendant views of this view.
+  // pressed.
   ButtonFromView(views::View* content,
                  views::ButtonListener* listener,
-                 TrayPopupInkDropStyle ink_drop_style,
-                 bool highlight_on_hover,
-                 const gfx::Insets& tab_frame_inset);
+                 TrayPopupInkDropStyle ink_drop_style);
   ~ButtonFromView() override;
 
-  // Called when the border should remain even in the non highlighted state.
-  void ForceBorderVisible(bool show);
-
   // views::View:
   void OnMouseEntered(const ui::MouseEvent& event) override;
   void OnMouseExited(const ui::MouseEvent& event) override;
@@ -62,30 +52,17 @@ class ButtonFromView : public views::CustomButton {
   std::unique_ptr<views::InkDropMask> CreateInkDropMask() const override;
 
  private:
-  // Change the hover/active state of the "button" when the status changes.
-  void ShowActive();
-
   // Content of button.
   views::View* content_;
 
   // Defines the flavor of ink drop ripple/highlight that should be constructed.
   TrayPopupInkDropStyle ink_drop_style_;
 
-  // Whether button should be highligthed on hover.
-  bool highlight_on_hover_;
-
   // True if button is hovered.
   bool button_hovered_;
 
-  // True if the border should be always visible.
-  bool show_border_;
-
-  // The insets which get used for the drawn accessibility (tab) frame.
-  gfx::Insets tab_frame_inset_;
-
   // A separate view is necessary to hold the ink drop layer so that |this| can
-  // host labels with subpixel anti-aliasing enabled. Only used for material
-  // design.
+  // host labels with subpixel anti-aliasing enabled.
   views::InkDropContainerView* ink_drop_container_;
 
   std::unique_ptr<views::InkDropMask> ink_drop_mask_;