Reduce views::Border creation verbosity by promoting factory functions

ui/views/corewm/tooltip_aura.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/views/corewm/tooltip_aura.h"
 
 #include "base/macros.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "ui/aura/window.h"
@@ skipping 55 matching lines @@
 
 // TODO(oshima): Consider to use views::Label.
 class TooltipAura::TooltipView : public views::View {
  public:
   TooltipView()
       : render_text_(gfx::RenderText::CreateInstance()),
         max_width_(0) {
     const int kHorizontalPadding = 8;
     const int kVerticalPaddingTop = 4;
     const int kVerticalPaddingBottom = 5;
-    SetBorder(Border::CreateEmptyBorder(kVerticalPaddingTop, kHorizontalPadding,
-                                        kVerticalPaddingBottom,
-                                        kHorizontalPadding));
+    SetBorder(CreateEmptyBorder(kVerticalPaddingTop, kHorizontalPadding,
+                                kVerticalPaddingBottom, kHorizontalPadding));
 
     set_owned_by_client();
     render_text_->SetWordWrapBehavior(gfx::WRAP_LONG_WORDS);
     render_text_->SetMultiline(true);
 
     ResetDisplayRect();
   }
 
   ~TooltipView() override {}
 
@@ skipping 153 matching lines @@
 }
 
 void TooltipAura::OnWidgetDestroying(views::Widget* widget) {
   DCHECK_EQ(widget_, widget);
   widget_ = NULL;
   tooltip_window_ = NULL;
 }
 
 }  // namespace corewm
 }  // namespace views