Limit QUIC uncompressed header size per stream to 16K, by default. Protected by FLAGS_quic_limit_un…

net/quic/core/quic_headers_stream_test.cc

Index: net/quic/core/quic_headers_stream_test.cc
diff --git a/net/quic/core/quic_headers_stream_test.cc b/net/quic/core/quic_headers_stream_test.cc
index c1ca9fbb00fbf39c50a239a1af7979fc9ca7db82..2a9f469ea22dab62799dbb526c6cfc3bb56a1470 100644
--- a/net/quic/core/quic_headers_stream_test.cc
+++ b/net/quic/core/quic_headers_stream_test.cc
@@ -627,6 +627,7 @@ TEST_P(QuicHeadersStreamTest, NonEmptyHeaderHOLBlockedTime) {
 }
 
 TEST_P(QuicHeadersStreamTest, ProcessLargeRawData) {
+  headers_stream_->set_max_uncompressed_header_bytes(256 * 1024);
   // We want to create a frame that is more than the SPDY Framer's max control
   // frame size, which is 16K, but less than the HPACK decoders max decode
   // buffer size, which is 32K.