Move scoped_temp_dir from base to base/files

chrome/browser/extensions/convert_web_app.cc

Index: chrome/browser/extensions/convert_web_app.cc
diff --git a/chrome/browser/extensions/convert_web_app.cc b/chrome/browser/extensions/convert_web_app.cc
index ea8c8c70b90ea05e9d3880e966a0ee1606599fb1..497297d1209bf12e6ac5337209ddcf067f73d5d3 100644
--- a/chrome/browser/extensions/convert_web_app.cc
+++ b/chrome/browser/extensions/convert_web_app.cc
@@ -12,17 +12,17 @@
 #include "base/base64.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
+#include "base/files/scoped_temp_dir.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/logging.h"
 #include "base/path_service.h"
-#include "base/scoped_temp_dir.h"
 #include "base/stringprintf.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/extension.h"
-#include "chrome/common/extensions/extension_manifest_constants.h"
 #include "chrome/common/extensions/extension_file_util.h"
+#include "chrome/common/extensions/extension_manifest_constants.h"
 #include "chrome/common/web_apps.h"
 #include "crypto/sha2.h"
 #include "googleurl/src/gurl.h"
@@ -94,7 +94,7 @@ scoped_refptr<Extension> ConvertWebAppToExtension(
     return NULL;
   }
 
-  ScopedTempDir temp_dir;
+  base::ScopedTempDir temp_dir;
   if (!temp_dir.CreateUniqueTempDirUnderPath(install_temp_dir)) {
     LOG(ERROR) << "Could not create temporary directory.";
     return NULL;