Increase HTTP/2 response header buffer limit to 256 kB.

net/spdy/hpack/hpack_constants.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_SPDY_HPACK_CONSTANTS_H_
 #define NET_SPDY_HPACK_CONSTANTS_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 30 matching lines @@
 };
 
 class HpackHuffmanTable;
 class HpackStaticTable;
 
 // Defined in RFC 7540 section 6.5.2.
 const uint32_t kDefaultHeaderTableSizeSetting = 4096;
 
 // Largest string literal an HpackDecoder/HpackEncoder will attempt to process
 // before returning an error.
-const uint32_t kDefaultMaxStringLiteralSize = 16 * 1024;
+const uint32_t kDefaultMaxStringLiteralSize = 256 * 1024;
 
 // Maximum amount of encoded header buffer HpackDecoder will retain before
 // returning an error.
 // TODO(jgraettinger): Remove with SpdyHeadersHandlerInterface switch.
-const uint32_t kMaxDecodeBufferSize = 32 * 1024;
+const uint32_t kMaxDecodeBufferSize = 256 * 1024;
 
 // 6.2: Flag for a string literal that is stored unmodified (i.e.,
 // without Huffman encoding).
 const HpackPrefix kStringLiteralIdentityEncoded = {0x0, 1};
 
 // 6.2: Flag for a Huffman-coded string literal.
 const HpackPrefix kStringLiteralHuffmanEncoded = {0x1, 1};
 
 // 7.1: Opcode for an indexed header field.
 const HpackPrefix kIndexedOpcode = {0x1, 1};
@@ skipping 26 matching lines @@
 // The instance is read-only, has static lifetime, and is safe to share amoung
 // threads. This function is thread-safe.
 NET_EXPORT_PRIVATE const HpackStaticTable& ObtainHpackStaticTable();
 
 // Pseudo-headers start with a colon.  (HTTP2 8.1.2.1., HPACK 3.1.)
 const char kPseudoHeaderPrefix = ':';
 
 }  // namespace net
 
 #endif  // NET_SPDY_HPACK_CONSTANTS_H_