Remove wstring from RVH's run Javascript command....

chrome/browser/extensions/alert_apitest.cc

Index: chrome/browser/extensions/alert_apitest.cc
===================================================================
--- chrome/browser/extensions/alert_apitest.cc	(revision 73855)
+++ chrome/browser/extensions/alert_apitest.cc	(working copy)
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/extensions/extension_process_manager.h"
@@ -18,8 +19,8 @@
   ExtensionHost* host = browser()->profile()->GetExtensionProcessManager()->
       GetBackgroundHostForExtension(extension);
   ASSERT_TRUE(host);
-  host->render_view_host()->ExecuteJavascriptInWebFrame(L"",
-      L"alert('This should not crash.');");
+  host->render_view_host()->ExecuteJavascriptInWebFrame(string16(),
+      ASCIIToUTF16("alert('This should not crash.');"));
 
   AppModalDialog* alert = ui_test_utils::WaitForAppModalDialog();
   ASSERT_TRUE(alert);