views-posse: Add metadata to notification_control_buttons_view

Bug: crbug/1159562
Test: build
Change-Id: Icc582dd5ffe43c94e9d06bf98d4ac470af01ea27
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2617401Reviewed-by: Allen Bauer <kylixrd@chromium.org>
Reviewed-by: Yoshiki Iguchi <yoshiki@chromium.org>
Commit-Queue: Sara Kato <sarakato@chromium.org>
Cr-Commit-Position: refs/heads/master@{#842907}

ui/message_center/views/notification_control_buttons_view.cc

@@ -20,12 +20,10 @@
 #include "ui/strings/grit/ui_strings.h"
 #include "ui/views/background.h"
 #include "ui/views/layout/box_layout.h"
+#include "ui/views/metadata/metadata_impl_macros.h"
 
 namespace message_center {
 
-const char NotificationControlButtonsView::kViewClassName[] =
-    "NotificationControlButtonsView";
-
 NotificationControlButtonsView::NotificationControlButtonsView(
     MessageView* message_view)
     : message_view_(message_view), icon_color_(gfx::kChromeIconGrey) {
@@ -146,10 +144,6 @@ void NotificationControlButtonsView::SetBackgroundColor(SkColor color) {
   UpdateButtonIconColors();
 }
 
-const char* NotificationControlButtonsView::GetClassName() const {
-  return kViewClassName;
-}
-
 #if BUILDFLAG(IS_CHROMEOS_ASH)
 void NotificationControlButtonsView::OnThemeChanged() {
   View::OnThemeChanged();
@@ -184,4 +178,7 @@ SkColor NotificationControlButtonsView::DetermineButtonIconColor() const {
   return color_utils::BlendForMinContrast(icon_color_, background_color_).color;
 }
 
+BEGIN_METADATA(NotificationControlButtonsView, views::View)
+END_METADATA
+
 }  // namespace message_center

ui/message_center/views/notification_control_buttons_view.h

@@ -20,10 +20,13 @@ class MessageView;
 class MESSAGE_CENTER_EXPORT NotificationControlButtonsView
     : public views::View {
  public:
-  // String to be returned by GetClassName() method.
-  static const char kViewClassName[];
+  METADATA_HEADER(NotificationControlButtonsView);
 
   explicit NotificationControlButtonsView(MessageView* message_view);
+  NotificationControlButtonsView(const NotificationControlButtonsView&) =
+      delete;
+  NotificationControlButtonsView& operator=(
+      const NotificationControlButtonsView&) = delete;
   ~NotificationControlButtonsView() override;
 
   // Change the visibility of the close button. True to show, false to hide.
@@ -51,8 +54,6 @@ class MESSAGE_CENTER_EXPORT NotificationControlButtonsView
   PaddedButton* settings_button() { return settings_button_; }
   PaddedButton* snooze_button() { return snooze_button_; }
 
-  // views::View
-  const char* GetClassName() const override;
 #if BUILDFLAG(IS_CHROMEOS_ASH)
   void OnThemeChanged() override;
 #endif
@@ -75,8 +76,6 @@ class MESSAGE_CENTER_EXPORT NotificationControlButtonsView
   SkColor icon_color_;
   // The background color for readability of the icons.
   SkColor background_color_ = SK_ColorTRANSPARENT;
-
-  DISALLOW_COPY_AND_ASSIGN(NotificationControlButtonsView);
 };
 
 }  // namespace message_center