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

chrome/browser/ui/views/toolbar/home_button.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_TOOLBAR_HOME_BUTTON_H_
 #define CHROME_BROWSER_UI_VIEWS_TOOLBAR_HOME_BUTTON_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "chrome/browser/ui/views/toolbar/toolbar_button.h"
 
 class Browser;
 
 class HomeButton : public ToolbarButton {
  public:
   HomeButton(views::ButtonListener* listener, Browser* browser);
   ~HomeButton() override;
 
+ private:
   // ToolbarButton:
+  const char* GetClassName() const override;
   bool GetDropFormats(
       int* formats,
       std::set<OSExchangeData::CustomFormat>* custom_formats) override;
   bool CanDrop(const OSExchangeData& data) override;
   int OnDragUpdated(const ui::DropTargetEvent& event) override;
   int OnPerformDrop(const ui::DropTargetEvent& event) override;
 
- private:
   // ToolbarButton:
   void NotifyClick(const ui::Event& event) override;
 
   Browser* browser_;
 
   DISALLOW_COPY_AND_ASSIGN(HomeButton);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_TOOLBAR_HOME_BUTTON_H_