Revert "Fix a ton of compiler warnings."

chrome/browser/gtk/tabs/tab_gtk.h

 // Copyright (c) 2009 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_GTK_TABS_TAB_GTK_H_
 #define CHROME_BROWSER_GTK_TABS_TAB_GTK_H_
 
 #include "app/theme_provider.h"
 #include "base/basictypes.h"
 #include "base/message_loop.h"
@@ skipping 55 matching lines @@
     virtual bool EndDrag(bool canceled) = 0;
 
     // Returns true if the associated TabStrip's delegate supports tab moving or
     // detaching. Used by the Frame to determine if dragging on the Tab
     // itself should move the window in cases where there's only one
     // non drag-able Tab.
     virtual bool HasAvailableDragActions() const = 0;
 
     // Returns the theme provider for icons and colors.
     virtual ThemeProvider* GetThemeProvider() = 0;
-
-   protected:
-    ~TabDelegate() {}
   };
 
   explicit TabGtk(TabDelegate* delegate);
   virtual ~TabGtk();
 
   // Access the delegate.
   TabDelegate* delegate() const { return delegate_; }
 
   GtkWidget* widget() const { return event_box_; }
 
@@ skipping 70 matching lines @@
   bool dragging_;
 
   // The cached width of the title in pixels, updated whenever the title
   // changes.
   int title_width_;
 
   DISALLOW_COPY_AND_ASSIGN(TabGtk);
 };
 
 #endif  // CHROME_BROWSER_GTK_TABS_TAB_GTK_H_