Add threadsafe version of PermissionManager::GetPermissionStatus

chrome/browser/permissions/permission_context_base.cc

Index: chrome/browser/permissions/permission_context_base.cc
diff --git a/chrome/browser/permissions/permission_context_base.cc b/chrome/browser/permissions/permission_context_base.cc
index 85744db632eeddf5e4316084ec4f66adb5adc5da..6719a923c6da49f0d7374c0cccc9fd104ff5ead8 100644
--- a/chrome/browser/permissions/permission_context_base.cc
+++ b/chrome/browser/permissions/permission_context_base.cc
@@ -122,9 +122,9 @@ void PermissionContextBase::RequestPermission(
 }
 
 ContentSetting PermissionContextBase::GetPermissionStatus(
+    HostContentSettingsMap* host,
     const GURL& requesting_origin,
     const GURL& embedding_origin) const {
-
   // If the permission has been disabled through Finch, block all requests.
   if (IsPermissionKillSwitchOn())
     return CONTENT_SETTING_BLOCK;
@@ -134,9 +134,16 @@ ContentSetting PermissionContextBase::GetPermissionStatus(
     return CONTENT_SETTING_BLOCK;
   }
 
-  return HostContentSettingsMapFactory::GetForProfile(profile_)
-      ->GetContentSetting(requesting_origin, embedding_origin,
-                          content_settings_type_, std::string());
+  return host->GetContentSetting(requesting_origin, embedding_origin,
+                                 content_settings_type_, std::string());
+}
+
+ContentSetting PermissionContextBase::GetPermissionStatus(
+    const GURL& requesting_origin,
+    const GURL& embedding_origin) const {
+  HostContentSettingsMap* host =

[mlamouri (slow - plz ping), 2016/10/22 11:36:38]

If that method needs to be called from the UI thread, maybe add a DCHECK?

+      HostContentSettingsMapFactory::GetForProfile(profile_);
+  return GetPermissionStatus(host, requesting_origin, embedding_origin);
 }
 
 void PermissionContextBase::ResetPermission(