Check whether read side is closed when reading QuicChromiumClientStream

When quic::QuicSpdyStream receives a RST_STREAM frame it clears the
underlying read buffer. Subsequent read operations should check
quic::QuicStream::read_side_closed() so that it doesn't access the
cleared read buffer.

This CL is cloned from https://crrev.com/c/4691923 by bashi@chromium.org.

(cherry picked from commit ecf8b69)

Bug: 1465224
Change-Id: I35a908e11d09c67dea857b34653d6cf1cadbb407
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4728448
Commit-Queue: Bence Béky <bnc@chromium.org>
Auto-Submit: Bence Béky <bnc@chromium.org>
Reviewed-by: Kenichi Ishibashi <bashi@chromium.org>
Commit-Queue: Kenichi Ishibashi <bashi@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1176838}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4733554
Reviewed-by: Bence Béky <bnc@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/5790@{#1904}
Cr-Branched-From: 1d71a33-refs/heads/main@{#1148114}

net/quic/quic_chromium_client_stream.cc

@@ -206,6 +206,10 @@ int QuicChromiumClientStream::Handle::ReadBody(
   if (!stream_)
     return net_error_;
 
+  if (stream_->read_side_closed()) {
+    return OK;
+  }
+
   int rv = stream_->Read(buffer, buffer_len);
   if (rv != ERR_IO_PENDING)
     return rv;