Convert //chrome/browser/ui from scoped_ptr to std::unique_ptr

chrome/browser/ui/libgtk2ui/select_file_dialog_impl_gtk2.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 "chrome/browser/ui/libgtk2ui/select_file_dialog_impl_gtk2.h"
 
 #include <gtk/gtk.h>
 #include <stddef.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
 
 #include <map>
+#include <memory>
 #include <set>
 #include <vector>
 
 // Xlib defines RootWindow
 #undef RootWindow
 
 #include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_restrictions.h"
 #include "chrome/browser/ui/libgtk2ui/gtk2_signal.h"
 #include "chrome/browser/ui/libgtk2ui/gtk2_util.h"
 #include "chrome/browser/ui/libgtk2ui/select_file_dialog_impl.h"
 #include "ui/aura/window_observer.h"
@@ skipping 147 matching lines @@
 void SelectFileDialogImplGTK::AddFilters(GtkFileChooser* chooser) {
   for (size_t i = 0; i < file_types_.extensions.size(); ++i) {
     GtkFileFilter* filter = NULL;
     std::set<std::string> fallback_labels;
 
     for (size_t j = 0; j < file_types_.extensions[i].size(); ++j) {
       const std::string& current_extension = file_types_.extensions[i][j];
       if (!current_extension.empty()) {
         if (!filter)
           filter = gtk_file_filter_new();
-        scoped_ptr<std::string> file_extension(
+        std::unique_ptr<std::string> file_extension(
             new std::string("." + current_extension));
         fallback_labels.insert(std::string("*").append(*file_extension));
         gtk_file_filter_add_custom(
             filter,
             GTK_FILE_FILTER_FILENAME,
             reinterpret_cast<GtkFileFilterFunc>(FileFilterCaseInsensitive),
             file_extension.release(),
             reinterpret_cast<GDestroyNotify>(OnFileFilterDataDestroyed));
       }
     }
@@ skipping 341 matching lines @@
   g_free(filename);
   if (pixbuf) {
     gtk_image_set_from_pixbuf(GTK_IMAGE(preview_), pixbuf);
     g_object_unref(pixbuf);
   }
   gtk_file_chooser_set_preview_widget_active(GTK_FILE_CHOOSER(chooser),
                                              pixbuf ? TRUE : FALSE);
 }
 
 }  // namespace libgtk2ui