Use standard icon/title in global error bubble

chrome/browser/ui/panels/panel.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/panels/panel.h"
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
@@ skipping 754 matching lines @@
     FormatTitleForDisplay(&title);
   }
 
   if (title.empty())
     title = base::UTF8ToUTF16(app_name());
 
   return title;
 }
 
 gfx::Image Panel::GetCurrentPageIcon() const {
-  return panel_host_->GetPageIcon();
+  return panel_host_.get() ? panel_host_->GetPageIcon() : gfx::Image();
 }
 
 void Panel::UpdateTitleBar() {
   native_panel_->UpdatePanelTitleBar();
 }
 
 void Panel::LoadingStateChanged(bool is_loading) {
   command_updater_.UpdateCommandEnabled(IDC_STOP, is_loading);
   native_panel_->UpdatePanelLoadingAnimations(is_loading);
   UpdateTitleBar();
@@ skipping 114 matching lines @@
 // static
 void Panel::FormatTitleForDisplay(base::string16* title) {
   size_t current_index = 0;
   size_t match_index;
   while ((match_index = title->find(L'\n', current_index)) !=
          base::string16::npos) {
     title->replace(match_index, 1, base::string16());
     current_index = match_index;
   }
 }