Fix the buggy usage of base::AutoReset in data_pipe_to_source_stream.cc

Bug: 884220
Change-Id: I02ab44bb09d69a75bfdc5336fb1250a7b574c758
Reviewed-on: https://chromium-review.googlesource.com/1250501Reviewed-by: Kunihiko Sakamoto <ksakamoto@chromium.org>
Commit-Queue: Kinuko Yasuda <kinuko@chromium.org>
Cr-Commit-Position: refs/heads/master@{#595009}

content/browser/loader/data_pipe_to_source_stream.cc

@@ -33,7 +33,7 @@ std::string DataPipeToSourceStream::Description() const {
 int DataPipeToSourceStream::Read(net::IOBuffer* buf,
                                  int buf_size,
                                  net::CompletionOnceCallback callback) {
-  base::AutoReset<bool>(&inside_read_, true);
+  base::AutoReset<bool> inside_read_checker(&inside_read_, true);
 
   if (!body_.get()) {
     // We have finished reading the pipe.