Make the externally connectable browser test clobber all of the builtins,

chrome/renderer/resources/extensions/searchbox_api.js

Index: chrome/renderer/resources/extensions/searchbox_api.js
diff --git a/chrome/renderer/resources/extensions/searchbox_api.js b/chrome/renderer/resources/extensions/searchbox_api.js
index 8a21d03203c9ac63829d20aad4507a5a1bfa1e2d..ac6da36c239306a3511d5e59965956ffdd0b2e9c 100644
--- a/chrome/renderer/resources/extensions/searchbox_api.js
+++ b/chrome/renderer/resources/extensions/searchbox_api.js
@@ -99,7 +99,7 @@ if (!chrome.embeddedSearch) {
         }
         var dedupedResults = [];
         for (url in urlToResultMap) {
-          dedupedResults.push(urlToResultMap[url]);
+          $Array.push(dedupedResults, urlToResultMap[url]);
         }
         return dedupedResults;
       }