Just set borders once when creating a views::LabelButton

chrome/browser/ui/views/global_error_bubble_view.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 "chrome/browser/ui/views/global_error_bubble_view.h"
 
 #include <vector>
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/ui/global_error/global_error.h"
@@ skipping 74 matching lines @@
     views::Label* message_label = new views::Label(message_strings[i]);
     message_label->SetMultiLine(true);
     message_label->SizeToFit(kMaxBubbleViewWidth);
     message_label->SetHorizontalAlignment(gfx::ALIGN_LEFT);
     message_labels.push_back(message_label);
   }
 
   base::string16 accept_string(error_->GetBubbleViewAcceptButtonLabel());
   scoped_ptr<views::BlueButton> accept_button(
       new views::BlueButton(this, accept_string));
-  accept_button->SetStyle(views::Button::STYLE_BUTTON);
   accept_button->SetIsDefault(true);
   accept_button->set_tag(TAG_ACCEPT_BUTTON);
 
   if (error_->ShouldAddElevationIconToAcceptButton())
     elevation_icon_setter_.reset(
         new ElevationIconSetter(
             accept_button.get(),
             base::Bind(&GlobalErrorBubbleView::SizeToContents,
                        base::Unretained(this))));
 
@@ skipping 85 matching lines @@
     error_->BubbleViewDidClose(browser_);
 }
 
 bool GlobalErrorBubbleView::ShouldShowCloseButton() const {
   return error_ && error_->ShouldShowCloseButton();
 }
 
 void GlobalErrorBubbleView::CloseBubbleView() {
   GetWidget()->Close();
 }