Remove extension-to-component migration mechanism

chrome/browser/ui/toolbar/mock_component_toolbar_actions_factory.h

Index: chrome/browser/ui/toolbar/mock_component_toolbar_actions_factory.h
diff --git a/chrome/browser/ui/toolbar/mock_component_toolbar_actions_factory.h b/chrome/browser/ui/toolbar/mock_component_toolbar_actions_factory.h
index bc603373765673263388efc3def5dd936f4ce845..a366018a08f1f8415d056ee8db0167703d6b6c70 100644
--- a/chrome/browser/ui/toolbar/mock_component_toolbar_actions_factory.h
+++ b/chrome/browser/ui/toolbar/mock_component_toolbar_actions_factory.h
@@ -27,24 +27,7 @@ class MockComponentToolbarActionsFactory
       Browser* browser,
       ToolbarActionsBar* bar) override;
 
-  void RegisterComponentMigrations(
-      extensions::ComponentMigrationHelper* helper) const override;
-
-  void HandleComponentMigrations(extensions::ComponentMigrationHelper* helper,
-                                 Profile* profile) const override;
-
-  void set_migrated_extension_id(const extensions::ExtensionId& extension_id) {
-    migrated_extension_id_ = extension_id;
-  }
-
-  void set_migrated_feature_enabled(bool enabled) {
-    migrated_feature_enabled_ = enabled;
-  }
-
  private:
-  extensions::ExtensionId migrated_extension_id_;
-  bool migrated_feature_enabled_;
-
   DISALLOW_COPY_AND_ASSIGN(MockComponentToolbarActionsFactory);
 };