Add FilePath to base namespace.

chrome/test/logging/win/file_logger.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 CHROME_TEST_LOGGING_WIN_FILE_LOGGER_H_
 #define CHROME_TEST_LOGGING_WIN_FILE_LOGGER_H_
 
 #include <guiddef.h>
 
 #include "base/basictypes.h"
 #include "base/string16.h"
 #include "base/win/event_trace_controller.h"
 
+namespace base {
 class FilePath;
+}
 
 namespace logging_win {
 
 // A file logger instance captures LOG messages and trace events emitted via
 // Event Tracing for Windows (ETW) and sends them to a file.  Events can be
 // pulled from the file sometime later with PrintLogFile or ReadLogFile
 // (currently in log_file_printer_win.h and log_file_reader_win.h,
 // respectively).
 //
 // Important usage notes (read this):
@@ skipping 27 matching lines @@
   void Initialize();
 
   // Initializes the instance to collect logs from the providers present in
   // the given mask; see EventProviderBits.
   void Initialize(uint32 event_provider_mask);
 
   // Starts capturing logs from all providers into |log_file|.  The common file
   // extension for such files is .etl.  Returns false if the session could not
   // be started (e.g., if not running as admin) or if no providers could be
   // enabled.
-  bool StartLogging(const FilePath& log_file);
+  bool StartLogging(const base::FilePath& log_file);
 
   // Stops capturing logs.
   void StopLogging();
 
   // Returns true if logs are being captured.
   bool is_logging() const {
     return controller_.session_name() && *controller_.session_name();
   }
 
  private:
   bool EnableProviders();
   void DisableProviders();
 
   static bool is_initialized_;
 
   base::win::EtwTraceController controller_;
   uint32 event_provider_mask_;
 
   DISALLOW_COPY_AND_ASSIGN(FileLogger);
 };
 
 }  // namespace logging_win
 
 #endif  // CHROME_TEST_LOGGING_WIN_FILE_LOGGER_H_