[WIP] off-main-thread loading

content/public/common/content_features.cc

Index: content/public/common/content_features.cc
diff --git a/content/public/common/content_features.cc b/content/public/common/content_features.cc
index 0d82ed0dc5bb0899e2c472d780b4b44f6ec2e0ca..cd83cd7a787df1994ae64774bcfaedb95c2ce0c1 100644
--- a/content/public/common/content_features.cc
+++ b/content/public/common/content_features.cc
@@ -140,6 +140,11 @@ const base::Feature kNotificationContentImage{"NotificationContentImage",
 const base::Feature kMainThreadBusyScrollIntervention{
     "MainThreadBusyScrollIntervention", base::FEATURE_DISABLED_BY_DEFAULT};
 
+// TODO(horo): This must be DISABLED_BY_DEFAULT for the production patch. We use
+// DISABLED_BY_DEFAULT only for the POC patch.
+const base::Feature kOffMainThreadFetch{"OffMainThreadFetch",
+                                        base::FEATURE_ENABLED_BY_DEFAULT};
+
 // Origin Trials for controlling access to feature/API experiments.
 const base::Feature kOriginTrials{"OriginTrials",
                                   base::FEATURE_ENABLED_BY_DEFAULT};