Straighten up includes of host_desktop.h/host_desktop_type.h

chrome/browser/tab_contents/navigation_metrics_recorder.cc

 // 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.
 
 #include "chrome/browser/tab_contents/navigation_metrics_recorder.h"
 
 #include "base/metrics/histogram_macros.h"
 #include "chrome/browser/browser_process.h"
+#include "chrome/browser/ui/host_desktop.h"
 #include "components/navigation_metrics/navigation_metrics.h"
 #include "components/rappor/rappor_utils.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/navigation_details.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/common/frame_navigate_params.h"
 #include "url/gurl.h"
 
@@ skipping 41 matching lines @@
         ui::HostDesktopType desktop =
             chrome::GetHostDesktopTypeForNativeView(native_view);
         UMA_HISTOGRAM_ENUMERATION("Win8.PageLoad",
                                   chrome::GetWin8Environment(desktop),
                                   chrome::WIN_8_ENVIRONMENT_MAX);
       }
     }
   }
 #endif
 }