Add FilePath to base namespace.

remoting/host/config_file_watcher.h

 // 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.
 
 #ifndef REMOTING_HOST_DAEMON_CONFIG_WATCHER_H_
 #define REMOTING_HOST_DAEMON_CONFIG_WATCHER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }  // namespace base
 
 namespace remoting {
 
 extern const char kHostConfigSwitchName[];
-extern const FilePath::CharType kDefaultHostConfigFile[];
+extern const base::FilePath::CharType kDefaultHostConfigFile[];
 
 class ConfigFileWatcherImpl;
 
 class ConfigFileWatcher {
  public:
   class Delegate {
    public:
     virtual ~Delegate();
 
     // Called once after starting watching the configuration file and every time
     // the file changes.
     virtual void OnConfigUpdated(const std::string& serialized_config) = 0;
 
     // Called when the configuration file watcher encountered an error.
     virtual void OnConfigWatcherError() = 0;
   };
 
   // Creates a configuration file watcher that lives at the |io_task_runner|
   // thread but posts config file updates on on |main_task_runner|.
   ConfigFileWatcher(
       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
       Delegate* delegate);
   virtual ~ConfigFileWatcher();
 
   // Starts watching |config_path|.
-  void Watch(const FilePath& config_path);
+  void Watch(const base::FilePath& config_path);
 
  private:
   scoped_refptr<ConfigFileWatcherImpl> impl_;
 
   DISALLOW_COPY_AND_ASSIGN(ConfigFileWatcher);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_DAEMON_CONFIG_WATCHER_H_