Fix ScopedTempDir in content_unittests

content/browser/fileapi/file_system_url_request_job_unittest.cc

Index: content/browser/fileapi/file_system_url_request_job_unittest.cc
diff --git a/content/browser/fileapi/file_system_url_request_job_unittest.cc b/content/browser/fileapi/file_system_url_request_job_unittest.cc
index dca1c535083cb3f1ad89993a7c5cef303c2ec1b5..8e47e4e90c726740641cfa9885e437c6041b76cd 100644
--- a/content/browser/fileapi/file_system_url_request_job_unittest.cc
+++ b/content/browser/fileapi/file_system_url_request_job_unittest.cc
@@ -246,10 +246,12 @@ class FileSystemURLRequestJobTest : public testing::Test {
     return GURL(kFileSystemURLPrefix + path);
   }
 
-  // Put the message loop at the top, so that it's the last thing deleted.
+  // Temp directory is at the top because it must be deleted last.
+  base::ScopedTempDir temp_dir_;
+
+  // The message loop must be deleted second to last.
   base::MessageLoopForIO message_loop_;
 
-  base::ScopedTempDir temp_dir_;
   scoped_refptr<storage::FileSystemContext> file_system_context_;
 
   net::URLRequestContext empty_context_;