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

chrome/browser/extensions/webstore_standalone_install_browsertest.cc

Index: chrome/browser/extensions/webstore_standalone_install_browsertest.cc
diff --git a/chrome/browser/extensions/webstore_standalone_install_browsertest.cc b/chrome/browser/extensions/webstore_standalone_install_browsertest.cc
index 70bbeca261cbcb23d969a7efe5aa6de6e8522e1a..4b7296a5f298639102869bdf07aa75d6a93e7ff9 100644
--- a/chrome/browser/extensions/webstore_standalone_install_browsertest.cc
+++ b/chrome/browser/extensions/webstore_standalone_install_browsertest.cc
@@ -85,8 +85,10 @@ class WebstoreStandaloneInstallTest : public InProcessBrowserTest {
     std::string script = StringPrintf("%s('%s')", test_function_name.c_str(),
         test_gallery_url_.c_str());
     ASSERT_TRUE(content::ExecuteJavaScriptAndExtractBool(
-        chrome::GetActiveWebContents(browser())->GetRenderViewHost(), L"",
-        UTF8ToWide(script), &result));
+        chrome::GetActiveWebContents(browser())->GetRenderViewHost(),
+        "",
+        script,
+        &result));
     EXPECT_TRUE(result);
   }