Split incognito extension content settings in session-only and persistent.

chrome/browser/content_settings/content_settings_policy_provider.cc

Index: chrome/browser/content_settings/content_settings_policy_provider.cc
diff --git a/chrome/browser/content_settings/content_settings_policy_provider.cc b/chrome/browser/content_settings/content_settings_policy_provider.cc
index 484d53648f4e8c2d0d427168f77c8a2525a7756d..55b43609184b7eb7a60bd5a51e631efdf00aac7e 100644
--- a/chrome/browser/content_settings/content_settings_policy_provider.cc
+++ b/chrome/browser/content_settings/content_settings_policy_provider.cc
@@ -178,8 +178,10 @@ void PolicyDefaultProvider::Observe(NotificationType type,
     }
 
     if (!is_off_the_record_) {
-      NotifyObservers(ContentSettingsDetails(
-            ContentSettingsPattern(), CONTENT_SETTINGS_TYPE_DEFAULT, ""));
+      ContentSettingsDetails details(ContentSettingsPattern(),
+                                     CONTENT_SETTINGS_TYPE_DEFAULT,
+                                     std::string());
+      NotifyObservers(details);
     }
   } else if (type == NotificationType::PROFILE_DESTROYED) {
     DCHECK_EQ(profile_, Source<Profile>(source).ptr());
@@ -448,8 +450,10 @@ void PolicyProvider::Observe(NotificationType type,
         *name == prefs::kManagedPopupsAllowedForUrls ||
         *name == prefs::kManagedPopupsBlockedForUrls) {
       ReadManagedContentSettings(true);
-      NotifyObservers(ContentSettingsDetails(
-          ContentSettingsPattern(), CONTENT_SETTINGS_TYPE_DEFAULT, ""));
+      ContentSettingsDetails details(ContentSettingsPattern(),
+                                     CONTENT_SETTINGS_TYPE_DEFAULT,
+                                     std::string());
+      NotifyObservers(details);
     }
   } else if (type == NotificationType::PROFILE_DESTROYED) {
     DCHECK_EQ(profile_, Source<Profile>(source).ptr());