Remove deprecated extension notification from AppLoadService

apps/app_load_service.h

Index: apps/app_load_service.h
diff --git a/apps/app_load_service.h b/apps/app_load_service.h
index 1f4998003a3d34a26547c2926b1a5f4d285e4486..362135d8aa63e3af19bef5de44c6ef7090b2b847 100644
--- a/apps/app_load_service.h
+++ b/apps/app_load_service.h
@@ -8,15 +8,18 @@
 #include <map>
 #include <string>
 
+#include "base/scoped_observer.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
+#include "extensions/browser/extension_registry_observer.h"
 
 class Profile;
 
 namespace extensions {
+class ExtensionRegistry;
 struct UnloadedExtensionInfo;
 }
 
@@ -25,7 +28,8 @@ namespace apps {
 // Monitors apps being reloaded and performs app specific actions (like launch
 // or restart) on them. Also provides an interface to schedule these actions.
 class AppLoadService : public KeyedService,
-                       public content::NotificationObserver {
+                       public content::NotificationObserver,
+                       public extensions::ExtensionRegistryObserver {
  public:
   enum PostReloadActionType {
     LAUNCH,
@@ -67,8 +71,15 @@ class AppLoadService : public KeyedService,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
+  // extensions::ExtensionRegistryObserver.
+  virtual void OnExtensionUnloaded(
+      content::BrowserContext* browser_context,
+      const extensions::Extension* extension,
+      extensions::UnloadedExtensionInfo::Reason reason) OVERRIDE;
+
   bool WasUnloadedForReload(
-      const extensions::UnloadedExtensionInfo& unload_info);
+      const extensions::ExtensionId& extension_id,
+      const extensions::UnloadedExtensionInfo::Reason unload_info);
   bool HasPostReloadAction(const std::string& extension_id);
 
   // Map of extension id to reload action. Absence from the map implies
@@ -77,6 +88,10 @@ class AppLoadService : public KeyedService,
   content::NotificationRegistrar registrar_;
   Profile* profile_;
 
+  ScopedObserver<extensions::ExtensionRegistry,
+                 extensions::ExtensionRegistryObserver>
+      extension_registry_observer_;
+
   DISALLOW_COPY_AND_ASSIGN(AppLoadService);
 };