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

webkit/glue/plugins/plugin_list_linux.cc

 // Copyright (c) 2009 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 "config.h"
 
 #include "webkit/glue/plugins/plugin_list.h"
 
 #include "base/file_util.h"
-#include "base/logging.h"
 #include "base/path_service.h"
 
 namespace NPAPI {
 
 void PluginList::PlatformInit() {
 }
 
 void PluginList::GetPluginDirectories(std::vector<FilePath>* plugin_dirs) {
   // For now, just look in the plugins/ under the exe directory.
   // TODO(port): this is not correct.  Rather than getting halfway there,
@@ skipping 21 matching lines @@
   // TODO(evanm): figure out which behavior is appropriate for Linux.
   // We don't need either yet as I'm just testing with Flash for now.
   return true;
 }
 
 void PluginList::LoadInternalPlugins() {
   // none for now
 }
 
 } // namespace NPAPI