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

chrome/browser/permissions/permission_queue_controller.cc

 // 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.
 
 #include "chrome/browser/permissions/permission_queue_controller.h"
 
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/content_settings/host_content_settings_map_factory.h"
 #include "chrome/browser/geolocation/geolocation_infobar_delegate_android.h"
 #include "chrome/browser/infobars/infobar_service.h"
 #include "chrome/browser/media/midi_permission_infobar_delegate_android.h"
 #include "chrome/browser/media/protected_media_identifier_infobar_delegate_android.h"
 #include "chrome/browser/notifications/notification_permission_infobar_delegate.h"
 #include "chrome/browser/permissions/permission_request.h"
 #include "chrome/browser/permissions/permission_request_id.h"
 #include "chrome/browser/permissions/permission_uma_util.h"
+#include "chrome/browser/permissions/permission_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/tab_contents/tab_util.h"
 #include "components/content_settings/core/browser/host_content_settings_map.h"
 #include "components/content_settings/core/common/content_settings.h"
 #include "components/infobars/core/infobar.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/web_contents.h"
@@ skipping 178 matching lines @@
 }
 
 void PermissionQueueController::OnPermissionSet(const PermissionRequestID& id,
                                                 const GURL& requesting_frame,
                                                 const GURL& embedder,
                                                 bool user_gesture,
                                                 bool update_content_setting,
                                                 bool allowed) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
 
+  // Check if we should convert a dismiss decision into a block decision. This
+  // is gated on enabling the kBlockPromptsIfDismissedOften feature.
+  if (!update_content_setting &&
+      prompt_decision_log_.Get().ShouldChangeDismissalToBlock(
+          profile_, requesting_frame, permission_type_)) {
+    update_content_setting = true;
+    allowed = false;
+  }
+
   // TODO(miguelg): move the permission persistence to
   // PermissionContextBase once all the types are moved there.
   PermissionRequestGestureType gesture_type =
       user_gesture ? PermissionRequestGestureType::GESTURE
                    : PermissionRequestGestureType::NO_GESTURE;
   if (update_content_setting) {
     UpdateContentSetting(requesting_frame, embedder, allowed);
     if (allowed) {
       PermissionUmaUtil::PermissionGranted(permission_type_, gesture_type,
                                            requesting_frame, profile_);
     } else {
       PermissionUmaUtil::PermissionDenied(permission_type_, gesture_type,
                                           requesting_frame, profile_);
     }
   } else {
     PermissionUmaUtil::PermissionDismissed(permission_type_, gesture_type,
                                            requesting_frame, profile_);
   }

[raymes, 2016/08/01 05:09:11]

I actually suspect we can merge this code into PermissionContextbase now, but
let's leave that for a separate CL. Would you be interested in doing this? It
would eliminate the code duplication.

[dominickn, 2016/08/03 05:38:46]

I think I can add it to my todo list, but it's a lower priority than other
experiments at this point.

 
   // Cancel this request first, then notify listeners.  TODO(pkasting): Why
   // is this order important?
   PendingInfobarRequests requests_to_notify;
   PendingInfobarRequests infobars_to_remove;
   std::vector<PendingInfobarRequests::iterator> pending_requests_to_remove;
   for (PendingInfobarRequests::iterator i = pending_infobar_requests_.begin();
        i != pending_infobar_requests_.end(); ++i) {
     if (!i->IsForPair(requesting_frame, embedder))
       continue;
@@ skipping 158 matching lines @@
   }
 
   ContentSetting content_setting =
       allowed ? CONTENT_SETTING_ALLOW : CONTENT_SETTING_BLOCK;
 
   HostContentSettingsMapFactory::GetForProfile(profile_)
       ->SetContentSettingDefaultScope(
           requesting_frame.GetOrigin(), embedder.GetOrigin(),
           content_settings_type_, std::string(), content_setting);
 }