Add FilePath to base namespace.

chrome/test/logging/win/log_file_printer.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/test/logging/win/log_file_printer.h"
 
 #include <windows.h>
 #include <objbase.h>
 
 #include <ios>
@@ skipping 224 matching lines @@
                                 const base::StringPiece& extra,
                                 DWORD stack_depth,
                                 const intptr_t* backtrace) {
   PrintEventContext(event, GetTraceTypeString(type), base::StringPiece());
   *out_ << name << " (id=0x" << std::hex << id << std::dec << ") " << extra
         << std::endl;
 }
 
 }  // namespace
 
-void logging_win::PrintLogFile(const FilePath& log_file,
+void logging_win::PrintLogFile(const base::FilePath& log_file,
                                std::ostream* out) {
   EventPrinter printer(out);
   logging_win::ReadLogFile(log_file, &printer);
 }