Inconsistent use of [x] close panel icon. Code changes.

chrome/browser/ui/gtk/extensions/extension_installed_bubble_gtk.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/gtk/extensions/extension_installed_bubble_gtk.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 302 matching lines @@
     // Manage label.
     GtkWidget* manage_label = gtk_label_new(
         l10n_util::GetStringUTF8(IDS_EXTENSION_INSTALLED_MANAGE_INFO).c_str());
     gtk_util::SetLabelWidth(manage_label, kTextColumnWidth);
     gtk_box_pack_start(GTK_BOX(text_column), manage_label, FALSE, FALSE, 0);
   }
 
   // Create and pack the close button.
   GtkWidget* close_column = gtk_vbox_new(FALSE, 0);
   gtk_box_pack_start(GTK_BOX(bubble_content), close_column, FALSE, FALSE, 0);
-  close_button_.reset(CustomDrawButton::CloseButton(theme_provider));
+  close_button_.reset(CustomDrawButton::CloseButtonBubble(theme_provider));
   g_signal_connect(close_button_->widget(), "clicked",
                    G_CALLBACK(OnButtonClick), this);
   gtk_box_pack_start(GTK_BOX(close_column), close_button_->widget(),
       FALSE, FALSE, 0);
 
   BubbleGtk::FrameStyle frame_style = BubbleGtk::ANCHOR_TOP_RIGHT;
 
   gfx::Rect bounds = gtk_util::WidgetBounds(reference_widget);
   if (type_ == OMNIBOX_KEYWORD) {
     // Reverse the arrow for omnibox keywords, since the bubble will be on the
@@ skipping 57 matching lines @@
   // on all references being cleared before it is destroyed.
   MessageLoopForUI::current()->PostTask(
       FROM_HERE,
       base::Bind(&ExtensionInstalledBubbleGtk::Close, this));
 }
 
 void ExtensionInstalledBubbleGtk::Close() {
   Release();  // Balanced in ctor.
   bubble_ = NULL;
 }