[Extensions Toolbar] Add a finch config for the redesign

chrome/browser/ui/cocoa/extensions/extension_installed_bubble_controller.mm

Index: chrome/browser/ui/cocoa/extensions/extension_installed_bubble_controller.mm
diff --git a/chrome/browser/ui/cocoa/extensions/extension_installed_bubble_controller.mm b/chrome/browser/ui/cocoa/extensions/extension_installed_bubble_controller.mm
index 657dc4041cb2867619060c728c1ee31ba3a58219..4789f2928f0d8da74dc38595160453ee421faa21 100644
--- a/chrome/browser/ui/cocoa/extensions/extension_installed_bubble_controller.mm
+++ b/chrome/browser/ui/cocoa/extensions/extension_installed_bubble_controller.mm
@@ -234,10 +234,12 @@ bool ExtensionInstalledBubbleBridge::MaybeShowNow() {
         NSMaxY(bounds) - extension_installed_bubble::kAppsBubbleArrowOffset);
     arrowPoint = [button convertPoint:anchor toView:nil];
   } else if (type_ == extension_installed_bubble::kBrowserAction ||
-             extensions::FeatureSwitch::extension_action_redesign()->
-                 IsEnabled()) {
+             (extensions::FeatureSwitch::extension_action_redesign()->
+                  IsEnabled() &&
+              type_ != extension_installed_bubble::kBundle)) {
     // If the toolbar redesign is enabled, all bubbles for extensions point to
-    // their toolbar action.
+    // their toolbar action. The exception is for bundles, for which there is no
+    // single associated extension.
     BrowserActionsController* controller =
         [[window->cocoa_controller() toolbarController]
             browserActionsController];