Display extension options in a WebUI overlay instead of in a new tab

chrome/browser/ui/webui/extensions/extension_settings_handler.cc

Index: chrome/browser/ui/webui/extensions/extension_settings_handler.cc
diff --git a/chrome/browser/ui/webui/extensions/extension_settings_handler.cc b/chrome/browser/ui/webui/extensions/extension_settings_handler.cc
index b938f65bfd7c2620f1de9a0964c26101684b7c92..e2b51d81756ab7873815e03c36cb52331050d4ed 100644
--- a/chrome/browser/ui/webui/extensions/extension_settings_handler.cc
+++ b/chrome/browser/ui/webui/extensions/extension_settings_handler.cc
@@ -91,6 +91,7 @@
 #include "extensions/common/manifest_handlers/background_info.h"
 #include "extensions/common/manifest_handlers/incognito_info.h"
 #include "extensions/common/permissions/permissions_data.h"
+#include "extensions/common/switches.h"
 #include "grit/browser_resources.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
@@ -883,6 +884,10 @@ void ExtensionSettingsHandler::HandleRequestExtensionsData(
       ExtensionPrefs::Get(profile)->ExtensionsBlacklistedByDefault();
   results.SetBoolean("loadUnpackedDisabled", load_unpacked_disabled);
 
+  results.SetBoolean(
+      "enableEmbeddedExtensionOptions",
+      extensions::FeatureSwitch::embedded_extension_options()->IsEnabled());
+
   web_ui()->CallJavascriptFunction(
       "extensions.ExtensionSettings.returnExtensionsData", results);