Reduce views::Border creation verbosity by promoting factory functions

ui/app_list/views/folder_header_view.cc

 // Copyright (c) 2013 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 "ui/app_list/views/folder_header_view.h"
 
 #include <algorithm>
 
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 18 matching lines @@
 const int kPreferredWidth = 360;
 const int kPreferredHeight = 48;
 const int kBottomSeparatorHeight = 1;
 const int kMaxFolderNameWidth = 300;
 
 }  // namespace
 
 class FolderHeaderView::FolderNameView : public views::Textfield {
  public:
   FolderNameView() {
-    SetBorder(views::Border::CreateEmptyBorder(1, 1, 1, 1));
+    SetBorder(views::CreateEmptyBorder(1, 1, 1, 1));
     SetTextColor(kFolderTitleColor);
   }
 
   ~FolderNameView() override {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FolderNameView);
 };
 
 FolderHeaderView::FolderHeaderView(FolderHeaderViewDelegate* delegate)
     : folder_item_(nullptr),
       folder_name_view_(new FolderNameView),
       folder_name_placeholder_text_(
           ui::ResourceBundle::GetSharedInstance().GetLocalizedString(
               IDS_APP_LIST_FOLDER_NAME_PLACEHOLDER)),
       delegate_(delegate),
       folder_name_visible_(true) {
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
   folder_name_view_->SetFontList(
       rb.GetFontList(ui::ResourceBundle::MediumFont));
   folder_name_view_->set_placeholder_text_color(kFolderTitleHintTextColor);
   folder_name_view_->set_placeholder_text(folder_name_placeholder_text_);
-  folder_name_view_->SetBorder(views::Border::NullBorder());
+  folder_name_view_->SetBorder(views::NullBorder());
   folder_name_view_->SetBackgroundColor(kContentsBackgroundColor);
   folder_name_view_->set_controller(this);
   AddChildView(folder_name_view_);
 }
 
 FolderHeaderView::~FolderHeaderView() {
   if (folder_item_)
     folder_item_->RemoveObserver(this);
 }
 
@@ skipping 138 matching lines @@
 void FolderHeaderView::ButtonPressed(views::Button* sender,
                                      const ui::Event& event) {
   delegate_->NavigateBack(folder_item_, event);
 }
 
 void FolderHeaderView::ItemNameChanged() {
   Update();
 }
 
 }  // namespace app_list