[Mac] Convert the page info window to a bubble.

chrome/browser/page_info_model.h

 // 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.
 
 #ifndef CHROME_BROWSER_PAGE_INFO_MODEL_H_
 #define CHROME_BROWSER_PAGE_INFO_MODEL_H_
 #pragma once
 
 #include <vector>
 
 #include "base/string16.h"
 #include "chrome/browser/cancelable_request.h"
 #include "chrome/browser/history/history.h"
 #include "chrome/browser/tab_contents/navigation_entry.h"
 #include "googleurl/src/gurl.h"
 
 class PrefService;
 class Profile;
 
 // The model that provides the information that should be displayed in the page
 // info dialog/bubble.
 class PageInfoModel {
  public:
   class PageInfoModelObserver {
    public:
+    virtual ~PageInfoModelObserver() {}
+
     virtual void ModelChanged() = 0;
-
-   protected:
-    virtual ~PageInfoModelObserver() {}
   };
 
   enum SectionInfoType {
     SECTION_INFO_IDENTITY = 0,
     SECTION_INFO_CONNECTION,
     SECTION_INFO_FIRST_VISIT,
   };
 
   enum SectionInfoState {
     SECTION_STATE_OK = 0,
@@ skipping 62 matching lines @@
   std::vector<SectionInfo> sections_;
 
   // Used to request number of visits.
   CancelableRequestConsumer request_consumer_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PageInfoModel);
 };
 
 #endif  // CHROME_BROWSER_PAGE_INFO_MODEL_H_