Check embargo status in PlatformNotificationServiceImpl::CheckPermissionOnIOThread

chrome/browser/permissions/permission_decision_auto_blocker.h

Index: chrome/browser/permissions/permission_decision_auto_blocker.h
diff --git a/chrome/browser/permissions/permission_decision_auto_blocker.h b/chrome/browser/permissions/permission_decision_auto_blocker.h
index 79bc114478311ddc990350f5891f3e3eefe795f4..d292f4a12876e892541650c70a20c8df2e0bad91 100644
--- a/chrome/browser/permissions/permission_decision_auto_blocker.h
+++ b/chrome/browser/permissions/permission_decision_auto_blocker.h
@@ -11,6 +11,7 @@
 #include "base/memory/singleton.h"
 #include "base/time/default_clock.h"
 #include "chrome/browser/permissions/permission_result.h"
+#include "components/content_settings/core/browser/host_content_settings_map.h"
 #include "components/content_settings/core/common/content_settings_types.h"
 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
 #include "components/keyed_service/core/keyed_service.h"
@@ -58,6 +59,16 @@ class PermissionDecisionAutoBlocker : public KeyedService {
 
   static PermissionDecisionAutoBlocker* GetForProfile(Profile* profile);
 
+  // Checks the status of the content setting to determine if |request_origin|
+  // is under embargo for |permission|. This checks both embargo for Permissions
+  // Blacklisting and repeated dismissals. This method should only be used if
+  // getting the profile-bound PermissionDecisionAutoBlocker object is not
+  // possible (e.g. we're on the IO thread).

[raymes, 2017/06/07 02:57:54]

nit: The last sentence is a little hard to understand. Perhaps just say:

Prefer to use the PermissionManager::GetPermissionStatus when possible. This is
only currently exposed to facilitate permission checks from threads other than
the UI thread.

Also you can link to crbug.com/658020.

[dominickn, 2017/06/08 01:03:04]

Done.

+  static PermissionResult GetEmbargoResult(HostContentSettingsMap* settings_map,
+                                           const GURL& request_origin,
+                                           ContentSettingsType permission,
+                                           base::Time current_time);
+
   // Updates the threshold to start blocking prompts from the field trial.
   static void UpdateFromVariations();