Revert "Fix a ton of compiler warnings."

chrome/browser/browser_list.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2006-2008 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_BROWSER_LIST_H_
-#define CHROME_BROWSER_BROWSER_LIST_H_
+#ifndef CHROME_BROWSER_BROWSER_LIST_H__
+#define CHROME_BROWSER_BROWSER_LIST_H__
 
 #include <vector>
 
 #include "chrome/browser/browser.h"
 
 // Stores a list of all Browser objects.
 class BrowserList {
  public:
   typedef std::vector<Browser*> list_type;
   typedef list_type::iterator iterator;
   typedef list_type::const_iterator const_iterator;
   typedef list_type::const_reverse_iterator const_reverse_iterator;
 
   // It is not allowed to change the global window list (add or remove any
   // browser windows while handling observer callbacks.
   class Observer {
    public:
     // Called immediately after a browser is added to the list
     virtual void OnBrowserAdded(const Browser* browser) = 0;
 
     // Called immediately before a browser is removed from the list
     virtual void OnBrowserRemoving(const Browser* browser) = 0;
 
     // Called immediately after a browser is set active (SetLastActive)
-    virtual void OnBrowserSetLastActive(const Browser* browser) {};
-
-   protected:
-    ~Observer() {};
+    virtual void OnBrowserSetLastActive(const Browser* browser) { };
   };
 
   // Adds and removes browsers from the global list. The browser object should
   // be valid BEFORE these calls (for the benefit of observers), so notify and
   // THEN delete the object.
   static void AddBrowser(Browser* browser);
   static void RemoveBrowser(Browser* browser);
 
   static void AddObserver(Observer* observer);
   static void RemoveObserver(Observer* observer);
@@ skipping 142 matching lines @@
 
   // tab index into the current Browser of the current web view
   int web_view_index_;
 
   // Current TabContents, or NULL if we're at the end of the list. This can
   // be extracted given the browser iterator and index, but it's nice to cache
   // this since the caller may access the current host many times.
   TabContents* cur_;
 };
 
-#endif  // CHROME_BROWSER_BROWSER_LIST_H_
+#endif  // CHROME_BROWSER_BROWSER_LIST_H__