Re-Revert "[WebModals] New API for browser-scoped popup management."

apps/app_window.h

Index: apps/app_window.h
diff --git a/apps/app_window.h b/apps/app_window.h
index 7e35b81bd29451af61eef6da964aad09930e8217..d8ae36cc4afef9ba132a3b02eaafe625bca128aa 100644
--- a/apps/app_window.h
+++ b/apps/app_window.h
@@ -11,7 +11,6 @@
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/sessions/session_id.h"
-#include "components/web_modal/popup_manager.h"
 #include "components/web_modal/web_contents_modal_dialog_manager_delegate.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
@@ -505,10 +504,6 @@ class AppWindow : public content::NotificationObserver,
   scoped_ptr<AppDelegate> app_delegate_;
   scoped_ptr<AppWebContentsHelper> helper_;
 
-  // Manages popup windows (bubbles, tab-modals) visible overlapping the
-  // app window.
-  scoped_ptr<web_modal::PopupManager> popup_manager_;
-
   base::WeakPtrFactory<AppWindow> image_loader_ptr_factory_;
 
   // Bit field of FullscreenType.