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

chrome/browser/ui/libgtk2ui/select_file_dialog_impl.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.
 //
 // This file implements common select dialog functionality between GTK and KDE.
 
 #include "chrome/browser/ui/libgtk2ui/select_file_dialog_impl.h"
 
 #include "base/environment.h"
 #include "base/files/file_util.h"
@@ skipping 23 matching lines @@
 // static
 ui::SelectFileDialog* SelectFileDialogImpl::Create(
     ui::SelectFileDialog::Listener* listener,
     ui::SelectFilePolicy* policy) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   if (use_kde_ == UNKNOWN) {
     // Start out assumimg we are not going to use KDE.
     use_kde_ = NO_KDE;
 
     // Check to see if KDE is the desktop environment.
-    scoped_ptr<base::Environment> env(base::Environment::Create());
+    std::unique_ptr<base::Environment> env(base::Environment::Create());
     base::nix::DesktopEnvironment desktop =
         base::nix::GetDesktopEnvironment(env.get());
     if (desktop == base::nix::DESKTOP_ENVIRONMENT_KDE3 ||
         desktop == base::nix::DESKTOP_ENVIRONMENT_KDE4 ||
         desktop == base::nix::DESKTOP_ENVIRONMENT_KDE5) {
       // Check to see if the user dislikes the KDE file dialog.
       if (!env->HasVar("NO_CHROME_KDE_FILE_DIALOG")) {
         // Check to see if the KDE dialog works.
         if (SelectFileDialogImpl::CheckKDEDialogWorksOnUIThread()) {
           use_kde_ = YES_KDE;
         }
       }
     }
   }
 
   if (use_kde_ == NO_KDE)
     return SelectFileDialogImpl::NewSelectFileDialogImplGTK(listener, policy);
 
-  scoped_ptr<base::Environment> env(base::Environment::Create());
+  std::unique_ptr<base::Environment> env(base::Environment::Create());
   base::nix::DesktopEnvironment desktop =
       base::nix::GetDesktopEnvironment(env.get());
   return SelectFileDialogImpl::NewSelectFileDialogImplKDE(
       listener, policy, desktop);
 }
 
 SelectFileDialogImpl::SelectFileDialogImpl(Listener* listener,
                                            ui::SelectFilePolicy* policy)
     : SelectFileDialog(listener, policy),
       file_type_index_(0),
@@ skipping 10 matching lines @@
   listener_ = NULL;
 }
 
 bool SelectFileDialogImpl::CallDirectoryExistsOnUIThread(
     const base::FilePath& path) {
   base::ThreadRestrictions::ScopedAllowIO allow_io;
   return base::DirectoryExists(path);
 }
 
 }  // namespace libgtk2ui