Move ReadFileToString to the base namespace.

base/process/process_iterator_linux.cc

 // Copyright (c) 2013 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 "base/process/process_iterator.h"
 
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/process/internal_linux.h"
 #include "base/strings/string_util.h"
@@ skipping 26 matching lines @@
 // line arguments. Returns true if successful.
 // Note: /proc/<pid>/cmdline contains command line arguments separated by single
 // null characters. We tokenize it into a vector of strings using '\0' as a
 // delimiter.
 bool GetProcCmdline(pid_t pid, std::vector<std::string>* proc_cmd_line_args) {
   // Synchronously reading files in /proc is safe.
   ThreadRestrictions::ScopedAllowIO allow_io;
 
   FilePath cmd_line_file = internal::GetProcPidDir(pid).Append("cmdline");
   std::string cmd_line;
-  if (!file_util::ReadFileToString(cmd_line_file, &cmd_line))
+  if (!ReadFileToString(cmd_line_file, &cmd_line))
     return false;
   std::string delimiters;
   delimiters.push_back('\0');
   Tokenize(cmd_line, delimiters, proc_cmd_line_args);
   return true;
 }
 
 }  // namespace
 
 ProcessIterator::ProcessIterator(const ProcessFilter* filter)
@@ skipping 70 matching lines @@
   return true;
 }
 
 bool NamedProcessIterator::IncludeEntry() {
   if (executable_name_ != entry().exe_file())
     return false;
   return ProcessIterator::IncludeEntry();
 }
 
 }  // namespace base