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

chrome/browser/history/history_browsertest.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 <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop.h"
 #include "base/utf_string_conversions.h"
@@ skipping 442 matching lines @@
       FilePath().AppendASCII("History"),
       FilePath().AppendASCII("target.html"));
   ui_test_utils::NavigateToURL(browser(), form);
 
   content::WebContents* web_contents = chrome::GetActiveWebContents(browser());
   string16 expected_title(ASCIIToUTF16("Target Page"));
   content::TitleWatcher title_watcher(
       chrome::GetActiveWebContents(browser()), expected_title);
   ASSERT_TRUE(content::ExecuteJavaScript(
       web_contents->GetRenderViewHost(),
-      L"",
-      ASCIIToWide("document.getElementById('form').submit()")));
+      "",
+      "document.getElementById('form').submit()"));
   EXPECT_EQ(expected_title, title_watcher.WaitAndGetTitle());
 
   std::vector<GURL> urls(GetHistoryContents());
   ASSERT_EQ(2u, urls.size());
   ASSERT_EQ(target, urls[0]);
   ASSERT_EQ(form, urls[1]);
 }
 
 // Verify history shortcut opens only one history tab per window.  Also, make
 // sure that existing history tab is activated.
@@ skipping 15 matching lines @@
 
   content::WebContents* active_web_contents =
       browser()->tab_strip_model()->GetActiveWebContents();
   ASSERT_EQ(web_contents, active_web_contents);
   ASSERT_EQ(history_url, active_web_contents->GetURL());
 
   content::WebContents* second_tab =
       browser()->tab_strip_model()->GetWebContentsAt(1);
   ASSERT_NE(history_url, second_tab->GetURL());
 }