wstring: convert all SetPageTitle APIs to use string16

webkit/tools/test_shell/test_webview_delegate_gtk.cc

Index: webkit/tools/test_shell/test_webview_delegate_gtk.cc
diff --git a/webkit/tools/test_shell/test_webview_delegate_gtk.cc b/webkit/tools/test_shell/test_webview_delegate_gtk.cc
index 71fe60e953c32eb1a763df627c30e104ca4fc844..78605b3947a61bb5cde8048d4e477ea22df16433 100644
--- a/webkit/tools/test_shell/test_webview_delegate_gtk.cc
+++ b/webkit/tools/test_shell/test_webview_delegate_gtk.cc
@@ -260,9 +260,9 @@ void TestWebViewDelegate::ShowJavaScriptAlert(const std::wstring& message) {
   gtk_widget_destroy(dialog);
 }
 
-void TestWebViewDelegate::SetPageTitle(const std::wstring& title) {
+void TestWebViewDelegate::SetPageTitle(const string16& title) {
   gtk_window_set_title(GTK_WINDOW(shell_->mainWnd()),
-                       ("Test Shell - " + WideToUTF8(title)).c_str());
+                       ("Test Shell - " + UTF16ToUTF8(title)).c_str());
 }
 
 void TestWebViewDelegate::SetAddressBarURL(const GURL& url) {