Move Posix file utils to the base namespace.

base/file_util_posix.cc

Index: base/file_util_posix.cc
diff --git a/base/file_util_posix.cc b/base/file_util_posix.cc
index 721f858a33ab6b3d8391718ce3e0cd83c9b79cf5..027337f32c6f90e217bc5e4cc62e2aefca5b7a49 100644
--- a/base/file_util_posix.cc
+++ b/base/file_util_posix.cc
@@ -336,22 +336,6 @@ bool DirectoryExists(const FilePath& path) {
   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 ReadFromFD(int fd, char* buffer, size_t bytes) {
   size_t total_read = 0;
   while (total_read < bytes) {
@@ -372,8 +356,7 @@ bool CreateSymbolicLink(const FilePath& target_path,
                    symlink_path.value().c_str()) != -1;
 }
 
-bool ReadSymbolicLink(const FilePath& symlink_path,
-                      FilePath* target_path) {
+bool ReadSymbolicLink(const FilePath& symlink_path, FilePath* target_path) {
   DCHECK(!symlink_path.empty());
   DCHECK(target_path);
   char buf[PATH_MAX];
@@ -389,7 +372,7 @@ bool ReadSymbolicLink(const FilePath& symlink_path,
 }
 
 bool GetPosixFilePermissions(const FilePath& path, int* mode) {
-  base::ThreadRestrictions::AssertIOAllowed();
+  ThreadRestrictions::AssertIOAllowed();
   DCHECK(mode);
 
   stat_wrapper_t file_info;
@@ -404,7 +387,7 @@ bool GetPosixFilePermissions(const FilePath& path, int* mode) {
 
 bool SetPosixFilePermissions(const FilePath& path,
                              int mode) {
-  base::ThreadRestrictions::AssertIOAllowed();
+  ThreadRestrictions::AssertIOAllowed();
   DCHECK((mode & ~FILE_PERMISSION_MASK) == 0);
 
   // Calls stat() so that we can preserve the higher bits like S_ISGID.
@@ -422,6 +405,22 @@ bool SetPosixFilePermissions(const FilePath& path,
   return true;
 }
 
+}  // 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;
+
 // Creates and opens a temporary file in |directory|, returning the
 // file descriptor. |path| is set to the temporary file path.
 // This function does NOT unlink() the file.