Reduce views::Border creation verbosity by promoting factory functions

ash/common/system/user/tray_user.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 "ash/common/system/user/tray_user.h"
 
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/session/session_state_delegate.h"
 #include "ash/common/shelf/wm_shelf_util.h"
 #include "ash/common/system/tray/system_tray.h"
@@ skipping 174 matching lines @@
       avatar_->SetCornerRadii(0, kTrayRoundedBorderRadius,
                               kTrayRoundedBorderRadius, 0);
     }
     if (label_) {
       // If label_ hasn't figured out its size yet, do that first.
       if (label_->GetContentsBounds().height() == 0)
         label_->SizeToPreferredSize();
       int height = label_->GetContentsBounds().height();
       int vertical_pad = (kTrayItemSize - height) / 2;
       int remainder = height % 2;
-      label_->SetBorder(views::Border::CreateEmptyBorder(
+      label_->SetBorder(views::CreateEmptyBorder(
           vertical_pad + remainder,
           kTrayLabelItemHorizontalPaddingBottomAlignment, vertical_pad,
           kTrayLabelItemHorizontalPaddingBottomAlignment));
     }
     layout_view_->SetLayoutManager(new views::BoxLayout(
         views::BoxLayout::kHorizontal, 0, 0, kUserLabelToIconPadding));
   } else {
     if (avatar_) {
       avatar_->SetCornerRadii(0, 0, kTrayRoundedBorderRadius,
                               kTrayRoundedBorderRadius);
     }
     if (label_) {
-      label_->SetBorder(views::Border::CreateEmptyBorder(
+      label_->SetBorder(views::CreateEmptyBorder(
           kTrayLabelItemVerticalPaddingVerticalAlignment,
           kTrayLabelItemHorizontalPaddingBottomAlignment,
           kTrayLabelItemVerticalPaddingVerticalAlignment,
           kTrayLabelItemHorizontalPaddingBottomAlignment));
     }
     layout_view_->SetLayoutManager(new views::BoxLayout(
         views::BoxLayout::kVertical, 0, 0, kUserLabelToIconPadding));
   }
 }
 
@@ skipping 33 matching lines @@
   // Unit tests might come here with no images for some users.
   if (avatar_->size().IsEmpty())
     avatar_->SetSize(gfx::Size(kTrayItemSize, kTrayItemSize));
 }
 
 void TrayUser::UpdateLayoutOfItem() {
   UpdateAfterShelfAlignmentChange(system_tray()->shelf_alignment());
 }
 
 }  // namespace ash