ClickToPlayPluginTest.NoCallbackAtLoad test should create head element

chrome/browser/content_settings/content_settings_browsertest.cc

Index: chrome/browser/content_settings/content_settings_browsertest.cc
diff --git a/chrome/browser/content_settings/content_settings_browsertest.cc b/chrome/browser/content_settings/content_settings_browsertest.cc
index beeb83147513181a4dc2db9e282de76befd2749e..91e0c66a5dc01b092b4d34b381b8481c47dcaaae 100644
--- a/chrome/browser/content_settings/content_settings_browsertest.cc
+++ b/chrome/browser/content_settings/content_settings_browsertest.cc
@@ -421,10 +421,14 @@ IN_PROC_BROWSER_TEST_F(ClickToPlayPluginTest, NoCallbackAtLoad) {
   GURL url("data:application/vnd.npapi-test,CallOnStartup();");
   ui_test_utils::NavigateToURL(browser(), url);
 
+  std::string script("CallOnStartup = function() { ");
+  script.append("document.documentElement.appendChild");
+  script.append("(document.createElement(\"head\")); ");
+  script.append("document.title = \"OK\"; }");
+
   // Inject the callback function into the HTML page generated by the browser.
   ASSERT_TRUE(content::ExecuteScript(
-      browser()->tab_strip_model()->GetActiveWebContents(),
-      "CallOnStartup = function() { document.title = \"OK\"; }"));
+      browser()->tab_strip_model()->GetActiveWebContents(), script));
 
   base::string16 expected_title(base::ASCIIToUTF16("OK"));
   content::TitleWatcher title_watcher(