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

chrome/test/ui_test_utils.cc

Index: chrome/test/ui_test_utils.cc
===================================================================
--- chrome/test/ui_test_utils.cc	(revision 73855)
+++ chrome/test/ui_test_utils.cc	(working copy)
@@ -288,7 +288,8 @@
   // Executes |script| and sets the JSON response |json|.
   virtual bool ExecuteJavaScriptAndGetJSON(const std::string& script,
                                            std::string* json) {
-    render_view_host_->ExecuteJavascriptInWebFrame(L"", UTF8ToWide(script));
+    render_view_host_->ExecuteJavascriptInWebFrame(string16(),
+                                                   UTF8ToUTF16(script));
     DOMOperationObserver dom_op_observer(render_view_host_);
     return dom_op_observer.GetResponse(json);
   }
@@ -323,7 +324,8 @@
   //                automation id.
   std::wstring script = L"window.domAutomationController.setAutomationId(0);" +
       original_script;
-  render_view_host->ExecuteJavascriptInWebFrame(frame_xpath, script);
+  render_view_host->ExecuteJavascriptInWebFrame(WideToUTF16Hack(frame_xpath),
+                                                WideToUTF16Hack(script));
   DOMOperationObserver dom_op_observer(render_view_host);
   std::string json;
   if (!dom_op_observer.GetResponse(&json))