Stop inheriting push notification permissions from regular to incognito

components/content_settings/core/browser/content_settings_default_provider.cc

 // 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.
 
 #include "components/content_settings/core/browser/content_settings_default_provider.h"
 
 #include <string>
 #include <vector>
 
 #include "base/auto_reset.h"
@@ skipping 242 matching lines @@
                   content_type,
                   ResourceIdentifier());
 
   return true;
 }
 
 RuleIterator* DefaultProvider::GetRuleIterator(
     ContentSettingsType content_type,
     const ResourceIdentifier& resource_identifier,
     bool incognito) const {
+  // The default provider never has incognito-specific settings.
+  if (incognito)
+    return new EmptyRuleIterator();
+
   base::AutoLock lock(lock_);
   if (resource_identifier.empty()) {
     auto it(default_settings_.find(content_type));
     if (it != default_settings_.end())
       return new DefaultRuleIterator(it->second);
     NOTREACHED();
   }
   return new EmptyRuleIterator();
 }
 
@@ skipping 99 matching lines @@
 }
 
 void DefaultProvider::DiscardObsoletePreferences() {
   prefs_->ClearPref(kObsoleteDefaultContentSettings);
   prefs_->ClearPref(kObsoleteMigratedDefaultContentSettings);
   prefs_->ClearPref(kObsoleteMigratedDefaultMediaStreamSetting);
   prefs_->ClearPref(kObsoleteMetroSwitchToDesktopSetting);
 }
 
 }  // namespace content_settings