(Owner approval for) Delay network requests on startup if any webRequest ...

chrome/common/extensions/extension.cc

Index: chrome/common/extensions/extension.cc
===================================================================
--- chrome/common/extensions/extension.cc	(revision 105566)
+++ chrome/common/extensions/extension.cc	(working copy)
@@ -2835,6 +2835,13 @@
   return location() != Extension::COMPONENT;
 }
 
+bool Extension::ImplicitlyDelaysNetworkStartup() const {
+  // Network requests should be deferred until any extensions that might want
+  // to observe or modify them are loaded.
+  return HasAPIPermission(ExtensionAPIPermission::kWebNavigation) ||
+      HasAPIPermission(ExtensionAPIPermission::kWebRequest);
+}
+
 bool Extension::IsDisallowedExperimentalPermission(
     ExtensionAPIPermission::ID permission) const {
   return permission == ExtensionAPIPermission::kExperimental &&