Straighten up includes of host_desktop.h/host_desktop_type.h

chrome/browser/ui/browser_iterator.h

 // Copyright (c) 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_BROWSER_ITERATOR_H_
 #define CHROME_BROWSER_UI_BROWSER_ITERATOR_H_
 
 #include "chrome/browser/ui/browser_list.h"
-#include "chrome/browser/ui/host_desktop.h"
+#include "ui/gfx/host_desktop_type.h"
 
 class Browser;
 
 namespace chrome {
 
 // Iterates over all existing browsers (potentially across multiple desktops).
 // Note: to iterate only over the browsers of a specific desktop, use the
 // const_iterator of a given BrowserList instead.
 //
 // Example:
@@ skipping 44 matching lines @@
   // reaches
   // |current_browser_list_->end()|.
   ui::HostDesktopType next_desktop_type_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserIterator);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_BROWSER_ITERATOR_H_