Move WriteFile and WriteFileDescriptor from file_util to base namespace.

base/file_util_win.cc

Index: base/file_util_win.cc
diff --git a/base/file_util_win.cc b/base/file_util_win.cc
index e7aadc218c4a765ad921f70e0b47f7aa71296328..4dbcb6d5eeb3148ac606a89552bf2fafc19b61d8 100644
--- a/base/file_util_win.cc
+++ b/base/file_util_win.cc
@@ -599,23 +599,8 @@ int ReadFile(const FilePath& filename, char* data, int size) {
   return -1;
 }
 
-}  // namespace base
-
-// -----------------------------------------------------------------------------
-
-namespace file_util {
-
-using base::DirectoryExists;
-using base::FilePath;
-using base::kFileShareAll;
-
-FILE* OpenFile(const std::string& filename, const char* mode) {
-  base::ThreadRestrictions::AssertIOAllowed();
-  return _fsopen(filename.c_str(), mode, _SH_DENYNO);
-}
-
 int WriteFile(const FilePath& filename, const char* data, int size) {
-  base::ThreadRestrictions::AssertIOAllowed();
+  ThreadRestrictions::AssertIOAllowed();
   base::win::ScopedHandle file(CreateFile(filename.value().c_str(),
                                           GENERIC_WRITE,
                                           0,
@@ -646,6 +631,21 @@ int WriteFile(const FilePath& filename, const char* data, int size) {
   return -1;
 }
 
+}  // namespace base
+
+// -----------------------------------------------------------------------------
+
+namespace file_util {
+
+using base::DirectoryExists;
+using base::FilePath;
+using base::kFileShareAll;
+
+FILE* OpenFile(const std::string& filename, const char* mode) {
+  base::ThreadRestrictions::AssertIOAllowed();
+  return _fsopen(filename.c_str(), mode, _SH_DENYNO);
+}
+
 int AppendToFile(const FilePath& filename, const char* data, int size) {
   base::ThreadRestrictions::AssertIOAllowed();
   base::win::ScopedHandle file(CreateFile(filename.value().c_str(),