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

chrome/browser/extensions/user_script_master.cc

 // Copyright (c) 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/browser/extensions/user_script_master.h"
 
 #include <vector>
 
 #include "base/file_path.h"
 #include "base/file_util.h"
-#include "base/logging.h"
 #include "base/path_service.h"
 #include "base/pickle.h"
 #include "base/string_util.h"
 #include "chrome/common/notification_service.h"
 #include "chrome/common/stl_util-inl.h"
 #include "chrome/common/url_constants.h"
 #include "net/base/net_util.h"
 
 // static
 bool GetDeclarationValue(const StringPiece& line, const StringPiece& prefix,
@@ skipping 249 matching lines @@
 
   StartScan();
 }
 
 void UserScriptMaster::StartScan() {
   if (!script_reloader_)
     script_reloader_ = new ScriptReloader(this);
 
   script_reloader_->StartScan(worker_loop_, user_script_dir_, lone_scripts_);
 }