Move scoped_temp_dir from base to base/files

chrome/browser/download/save_page_browsertest.cc

Index: chrome/browser/download/save_page_browsertest.cc
diff --git a/chrome/browser/download/save_page_browsertest.cc b/chrome/browser/download/save_page_browsertest.cc
index 37eab12071580e2d57907af1f281d373cb91162a..edc733d3a46ebcbaf5e5ed8086f5b3e22045c9a9 100644
--- a/chrome/browser/download/save_page_browsertest.cc
+++ b/chrome/browser/download/save_page_browsertest.cc
@@ -7,8 +7,8 @@
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
+#include "base/files/scoped_temp_dir.h"
 #include "base/path_service.h"
-#include "base/scoped_temp_dir.h"
 #include "base/test/test_file_util.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/api/prefs/pref_member.h"
@@ -356,7 +356,7 @@ class SavePageBrowserTest : public InProcessBrowserTest {
   FilePath test_dir_;
 
   // Temporary directory we will save pages to.
-  ScopedTempDir save_dir_;
+  base::ScopedTempDir save_dir_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SavePageBrowserTest);