Clean-up inline members of nested classes (chrome/browser/chromeos/)

chrome/browser/chromeos/extensions/file_browser_event_router.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/chromeos/extensions/file_browser_event_router.h"
 
 #include "base/bind.h"
 #include "base/json/json_writer.h"
 #include "base/message_loop.h"
 #include "base/stl_util.h"
@@ skipping 750 matching lines @@
     bool is_remote_file_system)
     : ref_count_(0),
       is_remote_file_system_(is_remote_file_system) {
   if (!is_remote_file_system_)
     file_watcher_.reset(new base::files::FilePathWatcher());
 
   virtual_path_ = path;
   AddExtension(extension_id);
 }
 
+FileBrowserEventRouter::FileWatcherExtensions::~FileWatcherExtensions() {}
+
 void FileBrowserEventRouter::FileWatcherExtensions::AddExtension(
     const std::string& extension_id) {
   ExtensionUsageRegistry::iterator it = extensions_.find(extension_id);
   if (it != extensions_.end()) {
     it->second++;
   } else {
     extensions_.insert(ExtensionUsageRegistry::value_type(extension_id, 1));
   }
 
   ref_count_++;
@@ skipping 78 matching lines @@
   return scoped_refptr<RefcountedProfileKeyedService>(
       new FileBrowserEventRouter(profile));
 }
 
 bool FileBrowserEventRouterFactory::ServiceHasOwnInstanceInIncognito() {
   // Explicitly and always allow this router in guest login mode.   see
   // chrome/browser/profiles/profile_keyed_base_factory.h comment
   // for the details.
   return true;
 }