Remove logging.h from cc files that don't use it.

chrome/views/separator.cc

 // 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.
 
 #include "chrome/views/separator.h"
 
-#include "base/logging.h"
 #include "chrome/views/hwnd_view.h"
 
 namespace views {
 
 static const int kSeparatorSize = 2;
 
 Separator::Separator() {
   SetFocusable(false);
 }
 
@@ skipping 11 matching lines @@
 
 LRESULT Separator::OnNotify(int w_param, LPNMHDR l_param) {
   return 0;
 }
 
 gfx::Size Separator::GetPreferredSize() {
   return gfx::Size(width(), fixed_height_);
 }
 
 }  // namespace views