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

chrome/browser/extensions/window_open_apitest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/command_line.h"
 #include "base/memory/scoped_vector.h"
 #include "base/stringprintf.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/extensions/extension_process_manager.h"
@@ skipping 374 matching lines @@
 
   GURL start_url(std::string("chrome-extension://") +
       last_loaded_extension_id_ + "/test.html");
   ui_test_utils::NavigateToURL(browser(), start_url);
   WebContents* newtab = NULL;
   ASSERT_NO_FATAL_FAILURE(OpenWindow(chrome::GetActiveWebContents(browser()),
                           start_url.Resolve("newtab.html"), true, &newtab));
 
   bool result = false;
   ASSERT_TRUE(content::ExecuteJavaScriptAndExtractBool(
-      newtab->GetRenderViewHost(), L"", L"testExtensionApi()", &result));
+      newtab->GetRenderViewHost(), "", "testExtensionApi()", &result));
   EXPECT_TRUE(result);
 }
 
 // Tests that if an extension page calls window.open to an invalid extension
 // URL, the browser doesn't crash.
 IN_PROC_BROWSER_TEST_F(ExtensionBrowserTest, WindowOpenInvalidExtension) {
   ASSERT_TRUE(LoadExtension(
       test_data_dir_.AppendASCII("uitest").AppendASCII("window_open")));
 
   GURL start_url(std::string("chrome-extension://") +
@@ skipping 16 matching lines @@
 
   ui_test_utils::NavigateToURL(browser(), GURL("about:blank"));
   WebContents* newtab = NULL;
   ASSERT_NO_FATAL_FAILURE(OpenWindow(chrome::GetActiveWebContents(browser()),
       GURL(std::string("chrome-extension://") + last_loaded_extension_id_ +
           "/newtab.html"), false, &newtab));
 
   // Extension API should succeed.
   bool result = false;
   ASSERT_TRUE(content::ExecuteJavaScriptAndExtractBool(
-      newtab->GetRenderViewHost(), L"", L"testExtensionApi()", &result));
+      newtab->GetRenderViewHost(), "", "testExtensionApi()", &result));
   EXPECT_TRUE(result);
 }