Remove chrome-extension-resource:// scheme

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index 393dd41cc2a36795fb28f183895b4a9a8f73e599..b109db87df50f0c059a996d26e2f631192eaedc1 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -411,8 +411,7 @@ void ChromeContentRendererClient::RenderThreadStarted() {
       chrome_search_scheme);
 
   // chrome-search: resources shouldn't trigger insecure content warnings. Note
-  // that chrome-extension: and chrome-extension-resource: schemes are taken
-  // care of in extensions::Dispatcher.
+  // that the chrome-extension: scheme is registered by extensions::Dispatcher.
   WebSecurityPolicy::registerURLSchemeAsSecure(chrome_search_scheme);
 
 #if BUILDFLAG(ENABLE_PRINT_PREVIEW)