Move scoped_temp_dir from base to base/files

base/files/scoped_temp_dir.cc

Index: base/files/scoped_temp_dir.cc
diff --git a/base/scoped_temp_dir.cc b/base/files/scoped_temp_dir.cc
similarity index 95%
rename from base/scoped_temp_dir.cc
rename to base/files/scoped_temp_dir.cc
index 9f4bcf40c6db07f5174675087b51916c09246f52..509f808f6d857121b4af7819e737771eaf656f9a 100644
--- a/base/scoped_temp_dir.cc
+++ b/base/files/scoped_temp_dir.cc
@@ -2,11 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "base/scoped_temp_dir.h"
+#include "base/files/scoped_temp_dir.h"
 
 #include "base/file_util.h"
 #include "base/logging.h"
 
+namespace base {
+
 ScopedTempDir::ScopedTempDir() {
 }
 
@@ -80,3 +82,5 @@ FilePath ScopedTempDir::Take() {
 bool ScopedTempDir::IsValid() const {
   return !path_.empty() && file_util::DirectoryExists(path_);
 }
+
+}  // namespace base