Add a feature which, when enabled, blocks permissions after X prompt dismissals.

chrome/browser/permissions/permission_queue_controller.h

 // Copyright 2013 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_PERMISSIONS_PERMISSION_QUEUE_CONTROLLER_H_
 #define CHROME_BROWSER_PERMISSIONS_PERMISSION_QUEUE_CONTROLLER_H_
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "components/content_settings/core/common/content_settings.h"
@@ skipping 50 matching lines @@
   void UpdateContentSetting(
       const GURL& requesting_frame, const GURL& embedder, bool allowed);
 
  protected:
   // content::NotificationObserver:
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
  private:
+  friend class PermissionContextBaseTests;

[raymes, 2016/08/05 03:27:48]

nit: Is this needed? I didn't see anything added to the test that would use it.

[dominickn, 2016/08/05 04:29:30]

Done.

   class PendingInfobarRequest;
   class RequestEquals;
 
   typedef std::vector<PendingInfobarRequest> PendingInfobarRequests;
 
   // Returns true if a geolocation infobar is already visible for the tab
   // corresponding to |id|.
   bool AlreadyShowingInfoBarForTab(const PermissionRequestID& id) const;
 
   // Shows the next pending infobar for the tab corresponding to |id|, if any.
@@ skipping 13 matching lines @@
   Profile* const profile_;
   content::PermissionType permission_type_;
   ContentSettingsType content_settings_type_;
   PendingInfobarRequests pending_infobar_requests_;
   bool in_shutdown_;
 
   DISALLOW_COPY_AND_ASSIGN(PermissionQueueController);
 };
 
 #endif  // CHROME_BROWSER_PERMISSIONS_PERMISSION_QUEUE_CONTROLLER_H_