Move PathIsWritable, DirectoryExists, ContentsEqual, and TextContentsEqual to the base namespace.

base/file_util_posix.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 "base/file_util.h"
 
 #include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <libgen.h>
@@ skipping 296 matching lines @@
   }
 
   return success;
 }
 
 bool PathExists(const FilePath& path) {
   ThreadRestrictions::AssertIOAllowed();
   return access(path.value().c_str(), F_OK) == 0;
 }
 
+bool PathIsWritable(const FilePath& path) {
+  ThreadRestrictions::AssertIOAllowed();
+  return access(path.value().c_str(), W_OK) == 0;
+}
+
+bool DirectoryExists(const FilePath& path) {
+  ThreadRestrictions::AssertIOAllowed();
+  stat_wrapper_t file_info;
+  if (CallStat(path.value().c_str(), &file_info) == 0)
+    return S_ISDIR(file_info.st_mode);
+  return false;
+}
+
 }  // namespace base
 
 // -----------------------------------------------------------------------------
 
 namespace file_util {
 
 using base::stat_wrapper_t;
 using base::CallStat;
 using base::CallLstat;
+using base::DirectoryExists;
 using base::FileEnumerator;
 using base::FilePath;
 using base::MakeAbsoluteFilePath;
 using base::RealPath;
 using base::VerifySpecificPathControlledByUser;
 
-bool PathIsWritable(const FilePath& path) {
-  base::ThreadRestrictions::AssertIOAllowed();
-  return access(path.value().c_str(), W_OK) == 0;
-}
-
-bool DirectoryExists(const FilePath& path) {
-  base::ThreadRestrictions::AssertIOAllowed();
-  stat_wrapper_t file_info;
-  if (CallStat(path.value().c_str(), &file_info) == 0)
-    return S_ISDIR(file_info.st_mode);
-  return false;
-}
-
 bool ReadFromFD(int fd, char* buffer, size_t bytes) {
   size_t total_read = 0;
   while (total_read < bytes) {
     ssize_t bytes_read =
         HANDLE_EINTR(read(fd, buffer + total_read, bytes - total_read));
     if (bytes_read <= 0)
       break;
     total_read += bytes_read;
   }
   return total_read == bytes;
@@ skipping 593 matching lines @@
     result = false;
   if (HANDLE_EINTR(close(outfile)) < 0)
     result = false;
 
   return result;
 }
 #endif  // !defined(OS_MACOSX)
 
 }  // namespace internal
 }  // namespace base