Add NotificationDisplayServiceProxy

chrome/browser/notifications/notification_display_service_factory.cc

Index: chrome/browser/notifications/notification_display_service_factory.cc
diff --git a/chrome/browser/notifications/notification_display_service_factory.cc b/chrome/browser/notifications/notification_display_service_factory.cc
index 3e7c4f17533e5000c53c894bbd2a78fa6578b7cd..2bc9b96f662513e8576523e8513e5a8dceb9be7b 100644
--- a/chrome/browser/notifications/notification_display_service_factory.cc
+++ b/chrome/browser/notifications/notification_display_service_factory.cc
@@ -8,6 +8,7 @@
 #include "base/memory/singleton.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/notifications/message_center_display_service.h"
+#include "chrome/browser/notifications/notification_display_service_proxy.h"
 #include "chrome/browser/notifications/notification_ui_manager.h"
 #include "chrome/browser/profiles/incognito_helpers.h"
 #include "chrome/browser/profiles/profile.h"
@@ -50,14 +51,18 @@ KeyedService* NotificationDisplayServiceFactory::BuildServiceInstanceFor(
   return new NativeNotificationDisplayService(
       Profile::FromBrowserContext(context),
       g_browser_process->notification_platform_bridge());
-#else   // defined(OS_ANDROID)
-  if (base::FeatureList::IsEnabled(features::kNativeNotifications) &&
-      g_browser_process->notification_platform_bridge()) {
+#elif defined(OS_MACOSX)
+  if (base::FeatureList::IsEnabled(features::kNativeNotifications)) {
     return new NativeNotificationDisplayService(
         Profile::FromBrowserContext(context),
         g_browser_process->notification_platform_bridge());
   }
-#endif  // defined(OS_ANDROID)
+#elif defined(OS_LINUX)
+  if (base::FeatureList::IsEnabled(features::kNativeNotifications)) {
+    return new NotificationDisplayServiceProxy(
+        Profile::FromBrowserContext(context));
+  }
+#endif
 #endif  // BUILDFLAG(ENABLE_NATIVE_NOTIFICATIONS)
   return new MessageCenterDisplayService(
       Profile::FromBrowserContext(context),