Reduce views::Border creation verbosity by promoting factory functions

ash/common/system/tray/tray_popup_utils.cc

 // Copyright 2016 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 "ash/common/system/tray/tray_popup_utils.h"
 
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/system/tray/fixed_sized_image_view.h"
 #include "ash/common/system/tray/tray_constants.h"
 #include "ash/common/system/tray/tray_popup_label_button.h"
@@ skipping 59 matching lines @@
       return CreateDefaultCenterLayoutManager();
   }
   // Required by some compilers.
   NOTREACHED();
   return nullptr;
 }
 
 views::Label* TrayPopupUtils::CreateDefaultLabel() {
   views::Label* label = new views::Label();
   label->SetHorizontalAlignment(gfx::ALIGN_LEFT);
-  label->SetBorder(
-      views::Border::CreateEmptyBorder(0, kTrayPopupLabelHorizontalPadding, 0,
-                                       kTrayPopupLabelHorizontalPadding));
+  label->SetBorder(views::CreateEmptyBorder(0, kTrayPopupLabelHorizontalPadding,
+                                            0,
+                                            kTrayPopupLabelHorizontalPadding));
 
   // TODO(bruthig): Fix this so that |label| uses the kBackgroundColor to
   // perform subpixel rendering instead of disabling subpixel rendering.
   //
   // Text rendered on a non-opaque background looks ugly and it is possible for
   // labels to given a a clear canvas at paint time when an ink drop is visible.
   // See http://crbug.com/661714.
   label->SetSubpixelRenderingEnabled(false);
 
   return label;
@@ skipping 28 matching lines @@
       tri_view->SetMinSize(
           TriView::Container::END,
           gfx::Size(GetTrayConstant(TRAY_POPUP_ITEM_MIN_END_WIDTH), 0));
       break;
   }
 
   tri_view->SetContainerLayout(container, CreateLayoutManager(container));
 }
 
 }  // namespace ash