Reduce views::Border creation verbosity by promoting factory functions

ash/common/system/user/button_from_view.cc

 // Copyright 2014 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/button_from_view.h"
 
 #include "ash/common/ash_constants.h"
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/system/tray/tray_constants.h"
 #include "ash/common/system/tray/tray_utils.h"
@@ skipping 88 matching lines @@
     GetAccessibleLabelFromDescendantViews(child_at(i), labels);
   node_data->SetName(base::JoinString(labels, base::ASCIIToUTF16(" ")));
 }
 
 void ButtonFromView::ShowActive() {
   if (MaterialDesignController::IsSystemTrayMenuMaterial())
     return;
   bool border_visible =
       (button_hovered_ && highlight_on_hover_) || show_border_;
   SkColor border_color = border_visible ? kBorderColor : SK_ColorTRANSPARENT;
-  SetBorder(views::Border::CreateSolidBorder(1, border_color));
+  SetBorder(views::CreateSolidBorder(1, border_color));
   if (highlight_on_hover_) {
     SkColor background_color =
         button_hovered_ ? kHoverBackgroundColor : kBackgroundColor;
     content_->set_background(
         views::Background::CreateSolidBackground(background_color));
     set_background(views::Background::CreateSolidBackground(background_color));
   }
   SchedulePaint();
 }
 
 }  // namespace tray
 }  // namespace ash