Move PathExists to base namespace.

chrome/test/automation/proxy_launcher.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/automation/proxy_launcher.h"
 
 #include <vector>
 
 #include "base/environment.h"
 #include "base/file_util.h"
@@ skipping 64 matching lines @@
 // We want to have a current history database when we start the browser so
 // things like the NTP will have thumbnails.  This method updates the dates
 // in the history to be more recent.
 void UpdateHistoryDates(const base::FilePath& user_data_dir) {
   // Migrate the times in the segment_usage table to yesterday so we get
   // actual thumbnails on the NTP.
   sql::Connection db;
   base::FilePath history =
       user_data_dir.AppendASCII("Default").AppendASCII("History");
   // Not all test profiles have a history file.
-  if (!file_util::PathExists(history))
+  if (!base::PathExists(history))
     return;
 
   ASSERT_TRUE(db.Open(history));
   base::Time yesterday = base::Time::Now() - base::TimeDelta::FromDays(1);
   std::string yesterday_str = base::Int64ToString(yesterday.ToInternalValue());
   std::string query = base::StringPrintf(
       "UPDATE segment_usage "
       "SET time_slot = %s "
       "WHERE id IN (SELECT id FROM segment_usage WHERE time_slot > 0);",
       yesterday_str.c_str());
@@ skipping 532 matching lines @@
   return LaunchBrowserAndServer(state, wait_for_initial_loads);
 }
 
 void AnonymousProxyLauncher::TerminateConnection() {
   CloseBrowserAndServer();
 }
 
 std::string AnonymousProxyLauncher::PrefixedChannelID() const {
   return channel_id_;
 }