Allow cert-popup for WebView guests.

chrome/browser/ui/cocoa/constrained_window/constrained_window_mac.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_COCOA_CONSTRAINED_WINDOW_CONSTRAINED_WINDOW_MAC_
 #define CHROME_BROWSER_UI_COCOA_CONSTRAINED_WINDOW_CONSTRAINED_WINDOW_MAC_
 
 #import <Cocoa/Cocoa.h>
 
 namespace content {
@@ skipping 13 matching lines @@
 // Constrained window implementation for Mac.
 // Normally an instance of this class is owned by the delegate. The delegate
 // should delete the instance when the window is closed.
 class ConstrainedWindowMac {
  public:
   ConstrainedWindowMac(ConstrainedWindowMacDelegate* delegate,
                        content::WebContents* web_contents,
                        id<ConstrainedWindowSheet> sheet);
   ~ConstrainedWindowMac();
 
+  // Indicates if the dialog can be successfully shown.
+  // TODO(davidben): Remove this when the certificate selector prompt is moved
+  // to the WebContentsDelegate. https://crbug.com/456255.
+  static bool HasTopLevelDialogManager(content::WebContents* web_contents);
+
   // Closes the constrained window.
   void CloseWebContentsModalDialog();
 
   SingleWebContentsDialogManagerCocoa* manager() const { return manager_; }
   void set_manager(SingleWebContentsDialogManagerCocoa* manager) {
     manager_ = manager;
   }
 
   // Called by |manager_| when the dialog is closing.
   void OnDialogClosing();
 
  private:
   ConstrainedWindowMacDelegate* delegate_;  // weak, owns us.
   SingleWebContentsDialogManagerCocoa* manager_;  // weak, owned by WCMDM.
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_CONSTRAINED_WINDOW_CONSTRAINED_WINDOW_MAC_