Make saving files from flash less annoying.

ui/base/dialogs/gtk/select_file_dialog_impl_gtk.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 <gtk/gtk.h>
 #include <map>
 #include <set>
 #include <vector>
 
 #include "base/file_util.h"
@@ skipping 385 matching lines @@
                                   GTK_FILE_CHOOSER_ACTION_SAVE,
                                   GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                                   GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
                                   NULL);
 
   AddFilters(GTK_FILE_CHOOSER(dialog));
   if (!default_path.empty()) {
     // Since the file may not already exist, we use
     // set_current_folder() followed by set_current_name(), as per the
     // recommendation of the GTK docs.
-    gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog),
-        default_path.DirName().value().c_str());
-    gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog),
-        default_path.BaseName().value().c_str());
+    if (CallDirectoryExistsOnUIThread(default_path)) {
+      gtk_file_chooser_set_current_folder(
+          GTK_FILE_CHOOSER(dialog), default_path.value().c_str());
+      gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog), "");
+    } else {
+      gtk_file_chooser_set_current_folder(
+          GTK_FILE_CHOOSER(dialog), default_path.DirName().value().c_str());
+      gtk_file_chooser_set_current_name(
+          GTK_FILE_CHOOSER(dialog), default_path.BaseName().value().c_str());
+    }
   } else if (!last_saved_path_->empty()) {
     gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog),
                                         last_saved_path_->value().c_str());
   }
   gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(dialog), FALSE);
   gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(dialog),
                                                  TRUE);
   g_signal_connect(dialog, "response",
                    G_CALLBACK(OnSelectSingleFileDialogResponseThunk), this);
   return dialog;
@@ skipping 127 matching lines @@
 }  // namespace
 
 namespace ui {
 
 SelectFileDialogImpl* SelectFileDialogImpl::NewSelectFileDialogImplGTK(
     Listener* listener, ui::SelectFilePolicy* policy) {
   return new SelectFileDialogImplGTK(listener, policy);
 }
 
 }  // namespace ui