Modify QPACK API to prepare for creation of QPACK streams.

gfe-relnote: v99 only, not used in prod.
PiperOrigin-RevId: 262439958
Change-Id: I84e72bd32ab059e6e0ad7777bab355db4ec45c20
diff --git a/quic/core/qpack/qpack_decoder.h b/quic/core/qpack/qpack_decoder.h
index b3eea59..6a403fd 100644
--- a/quic/core/qpack/qpack_decoder.h
+++ b/quic/core/qpack/qpack_decoder.h
@@ -66,6 +66,7 @@
       QpackProgressiveDecoder::HeadersHandlerInterface* handler);
 
   // Decode data received on the encoder stream.
+  // TODO(b/112770235): Remove this method.
   void DecodeEncoderStreamData(QuicStringPiece data);
 
   // QpackEncoderStreamReceiver::Delegate implementation
@@ -83,6 +84,10 @@
     decoder_stream_sender_.set_qpack_stream_sender_delegate(delegate);
   }
 
+  QpackStreamReceiver* encoder_stream_receiver() {
+    return &encoder_stream_receiver_;
+  }
+
  private:
   // The encoder stream uses relative index (but different from the kind of
   // relative index used on a request stream).  This method converts relative
diff --git a/quic/core/qpack/qpack_encoder.h b/quic/core/qpack/qpack_encoder.h
index d64af56..ee988ce 100644
--- a/quic/core/qpack/qpack_encoder.h
+++ b/quic/core/qpack/qpack_encoder.h
@@ -52,6 +52,7 @@
                                const spdy::SpdyHeaderBlock* header_list);
 
   // Decode data received on the decoder stream.
+  // TODO(b/112770235): Remove this method.
   void DecodeDecoderStreamData(QuicStringPiece data);
 
   // Set maximum capacity of dynamic table, measured in bytes.
@@ -73,6 +74,14 @@
     encoder_stream_sender_.set_qpack_stream_sender_delegate(delegate);
   }
 
+  QpackStreamReceiver* decoder_stream_receiver() {
+    return &decoder_stream_receiver_;
+  }
+
+  uint64_t maximum_dynamic_table_capacity() const {
+    return header_table_.maximum_dynamic_table_capacity();
+  }
+
  private:
   friend class test::QpackEncoderPeer;
 
diff --git a/quic/core/qpack/qpack_header_table.h b/quic/core/qpack/qpack_header_table.h
index f251894..672c3ef 100644
--- a/quic/core/qpack/qpack_header_table.h
+++ b/quic/core/qpack/qpack_header_table.h
@@ -119,6 +119,10 @@
   // The returned index might not be the index of a valid entry.
   uint64_t draining_index(float draining_fraction) const;
 
+  uint64_t maximum_dynamic_table_capacity() const {
+    return maximum_dynamic_table_capacity_;
+  }
+
  private:
   friend class test::QpackHeaderTablePeer;