Remove the border around the wrench icon on notification balloons (Windows)....

chrome/browser/views/notifications/balloon_view.cc

 // Copyright (c) 2010 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/views/notifications/balloon_view.h"
 
 #include <vector>
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
@@ skipping 328 matching lines @@
                           rb.GetBitmapNamed(IDR_TAB_CLOSE_P));
   close_button_->SetBounds(GetCloseButtonBounds());
   close_button_->SetBackground(SK_ColorBLACK,
                                rb.GetBitmapNamed(IDR_TAB_CLOSE),
                                rb.GetBitmapNamed(IDR_TAB_CLOSE_MASK));
 
   options_menu_button_->SetIcon(*rb.GetBitmapNamed(IDR_BALLOON_WRENCH));
   options_menu_button_->SetHoverIcon(*rb.GetBitmapNamed(IDR_BALLOON_WRENCH_H));
   options_menu_button_->SetPushedIcon(*rb.GetBitmapNamed(IDR_BALLOON_WRENCH_P));
   options_menu_button_->set_alignment(views::TextButton::ALIGN_CENTER);
+  options_menu_button_->set_border(NULL);
   options_menu_button_->SetBounds(GetOptionsButtonBounds());
 
   source_label_->SetFont(rb.GetFont(ResourceBundle::SmallFont));
   source_label_->SetColor(kControlBarTextColor);
   source_label_->SetHorizontalAlignment(views::Label::ALIGN_LEFT);
   source_label_->SetBounds(GetLabelBounds());
 
   SizeContentsWindow();
   html_container_->Show();
   frame_container_->Show();
@@ skipping 133 matching lines @@
     NOTREACHED();
     return;
   }
 
   // If the renderer process attached to this balloon is disconnected
   // (e.g., because of a crash), we want to close the balloon.
   notification_registrar_.Remove(this,
       NotificationType::NOTIFY_BALLOON_DISCONNECTED, Source<Balloon>(balloon_));
   Close(false);
 }