Define class names for views class in c/b/ui/views

chrome/browser/ui/views/toolbar/home_button.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 "chrome/browser/ui/views/toolbar/home_button.h"
 
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/views/settings_api_bubble_helper_views.h"
@@ skipping 162 matching lines @@
     GURL old_homepage(prefs->GetString(prefs::kHomePage));
 
     prefs->SetBoolean(prefs::kHomePageIsNewTabPage, false);
     prefs->SetString(prefs::kHomePage, new_homepage_url.spec());
 
     HomePageUndoBubble::ShowBubble(browser_, old_is_ntp, old_homepage, this);
   }
   return ui::DragDropTypes::DRAG_NONE;
 }
 
+const char* HomeButton::GetClassName() const {
+  return "HomeButton";
+}
+
 void HomeButton::NotifyClick(const ui::Event& event) {
   ToolbarButton::NotifyClick(event);
   extensions::MaybeShowExtensionControlledHomeNotification(browser_);
 }