Move message_center::CustomNotificationView to arc::ArcNotificationView

ui/arc/notification/arc_notification_delegate.cc

Index: ui/arc/notification/arc_notification_delegate.cc
diff --git a/ui/arc/notification/arc_notification_delegate.cc b/ui/arc/notification/arc_notification_delegate.cc
index f71db1ef25d0dda8a2355b8ed85dce74576a82d2..488eb99d86fb92b3033abe29e1fc854c6a70fa8b 100644
--- a/ui/arc/notification/arc_notification_delegate.cc
+++ b/ui/arc/notification/arc_notification_delegate.cc
@@ -6,6 +6,10 @@
 
 #include "ui/arc/notification/arc_custom_notification_view.h"
 #include "ui/arc/notification/arc_notification_item.h"
+#include "ui/arc/notification/arc_notification_view.h"
+#include "ui/message_center/notification.h"
+#include "ui/message_center/views/message_center_controller.h"
+#include "ui/message_center/views/message_view.h"
 
 namespace arc {
 
@@ -15,15 +19,20 @@ ArcNotificationDelegate::ArcNotificationDelegate(
   DCHECK(item_);
 }
 
-ArcNotificationDelegate::~ArcNotificationDelegate() {}
+ArcNotificationDelegate::~ArcNotificationDelegate() = default;
 
-std::unique_ptr<message_center::CustomContent>
-ArcNotificationDelegate::CreateCustomContent() {
+std::unique_ptr<message_center::MessageView>
+ArcNotificationDelegate::CreateCustomMessageView(
+    message_center::MessageCenterController* controller,
+    const message_center::Notification& notification) {
   DCHECK(item_);
+  DCHECK_EQ(item_->GetNotificationId(), notification.id());
+
   auto view = base::MakeUnique<ArcCustomNotificationView>(item_.get());
   auto content_view_delegate = view->CreateContentViewDelegate();
-  return base::MakeUnique<message_center::CustomContent>(
-      std::move(view), std::move(content_view_delegate));
+  return base::MakeUnique<ArcNotificationView>(std::move(view),
+                                               std::move(content_view_delegate),
+                                               controller, notification);
 }
 
 void ArcNotificationDelegate::Close(bool by_user) {