Newly created profiles should have the grey silhouette as avatar.

chrome/browser/ui/views/frame/browser_view.h

 // Copyright (c) 2012 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_FRAME_BROWSER_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 189 matching lines @@
   bool IsGuestSession() const;
 
   // Returns true if the profile associated with this Browser window is
   // not off the record or a guest session.
   bool IsRegularOrGuestSession() const;
 
   // Returns the resource ID to use for the OTR icon, which depends on
   // which layout is being shown and whether we are full-screen.
   int GetOTRIconResourceID() const;
 
-  // Returns the resource ID to use for the Guest icon, which may depend on
-  // which layout is being shown and whether we are full-screen.
-  int GetGuestIconResourceID() const;
-
   // Returns true if the non-client view should render an avatar icon.
   bool ShouldShowAvatar() const;
 
   // Provides the containing frame with the accelerator for the specified
   // command id. This can be used to provide menu item shortcut hints etc.
   // Returns true if an accelerator was found for the specified |cmd_id|, false
   // otherwise.
   bool GetAccelerator(int cmd_id, ui::Accelerator* accelerator);
 
   // Returns true if the specificed |accelerator| is registered with this view.
@@ skipping 522 matching lines @@
   gfx::ScopedSysColorChangeListener color_change_listener_;
 
   scoped_ptr<WebContentsCloseHandler> web_contents_close_handler_;
 
   mutable base::WeakPtrFactory<BrowserView> activate_modal_dialog_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_BROWSER_VIEW_H_