Reduce views::Border creation verbosity by promoting factory functions

ui/message_center/views/notification_button.cc

 // Copyright 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/message_center/views/notification_button.h"
 
 #include "ui/gfx/canvas.h"
 #include "ui/message_center/message_center_style.h"
 #include "ui/message_center/views/constants.h"
 #include "ui/views/background.h"
@@ skipping 33 matching lines @@
     delete icon_;  // This removes the icon from this view's children.
   if (image.isNull()) {
     icon_ = NULL;
   } else {
     icon_ = new views::ImageView();
     icon_->SetImageSize(gfx::Size(message_center::kNotificationButtonIconSize,
                                   message_center::kNotificationButtonIconSize));
     icon_->SetImage(image);
     icon_->SetHorizontalAlignment(views::ImageView::LEADING);
     icon_->SetVerticalAlignment(views::ImageView::LEADING);
-    icon_->SetBorder(views::Border::CreateEmptyBorder(
+    icon_->SetBorder(views::CreateEmptyBorder(
         message_center::kButtonIconTopPadding, 0, 0, 0));
     AddChildViewAt(icon_, 0);
   }
 }
 
 void NotificationButton::SetTitle(const base::string16& title) {
   if (title_ != NULL)
     delete title_;  // This removes the title from this view's children.
   if (title.empty()) {
     title_ = NULL;
   } else {
     title_ = new views::Label(title);
     title_->SetHorizontalAlignment(gfx::ALIGN_LEFT);
     title_->SetEnabledColor(message_center::kRegularTextColor);
     title_->SetBackgroundColor(kRegularTextBackgroundColor);
     title_->SetBorder(
-        views::Border::CreateEmptyBorder(kButtonTitleTopPadding, 0, 0, 0));
+        views::CreateEmptyBorder(kButtonTitleTopPadding, 0, 0, 0));
     AddChildView(title_);
   }
   SetAccessibleName(title);
 }
 
 gfx::Size NotificationButton::GetPreferredSize() const {
   return gfx::Size(message_center::kNotificationWidth,
                    message_center::kButtonHeight);
 }
 
@@ skipping 31 matching lines @@
   if (state() == STATE_HOVERED || state() == STATE_PRESSED) {
     set_background(views::Background::CreateSolidBackground(
         message_center::kHoveredButtonBackgroundColor));
   } else {
     set_background(views::Background::CreateSolidBackground(
         kNotificationBackgroundColor));
   }
 }
 
 }  // namespace message_center