Change ExecuteJavaScript* helper functions in browser_test_utils.{h,cc}

chrome/browser/extensions/lazy_background_page_apitest.cc

Index: chrome/browser/extensions/lazy_background_page_apitest.cc
diff --git a/chrome/browser/extensions/lazy_background_page_apitest.cc b/chrome/browser/extensions/lazy_background_page_apitest.cc
index f50531644732d3bbc27b03d4036fc38042882f37..db0c2a997fcff6f9be39d50ba3e8ded0b76b7e66 100644
--- a/chrome/browser/extensions/lazy_background_page_apitest.cc
+++ b/chrome/browser/extensions/lazy_background_page_apitest.cc
@@ -256,7 +256,7 @@ IN_PROC_BROWSER_TEST_F(LazyBackgroundPageApiTest, WaitForRequest) {
   // Abort the request.
   bool result = false;
   EXPECT_TRUE(content::ExecuteJavaScriptAndExtractBool(
-      host->render_view_host(), std::wstring(), L"abortRequest()", &result));
+      host->render_view_host(), "", "abortRequest()", &result));
   EXPECT_TRUE(result);
   page_complete.Wait();