Replace the existing SpdyHeaderBlock typedef with a class.

net/net.gypi

 # 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.
 
 # This file is shared between the regular GYP build, the NaCl GYP build, and
 # the GN build. For GN support, it must have no conditionals or anything like
 # that beyond the simple one-level-deep dictionary of values.
 {
   'variables': {
     # Subset of net source files that are compiled for NaCl (net_nacl target).
@@ skipping 1636 matching lines @@
       'spdy/hpack/hpack_output_stream_test.cc',
       'spdy/hpack/hpack_round_trip_test.cc',
       'spdy/hpack/hpack_static_table_test.cc',
       'spdy/mock_spdy_framer_visitor.cc',
       'spdy/mock_spdy_framer_visitor.h',
       'spdy/spdy_alt_svc_wire_format_test.cc',
       'spdy/spdy_buffer_unittest.cc',
       'spdy/spdy_frame_builder_test.cc',
       'spdy/spdy_frame_reader_test.cc',
       'spdy/spdy_framer_test.cc',
-      'spdy/spdy_header_block_unittest.cc',
+      'spdy/spdy_header_block_test.cc',
       'spdy/spdy_headers_block_parser_test.cc',
       'spdy/spdy_http_stream_unittest.cc',
       'spdy/spdy_http_utils_unittest.cc',
       'spdy/spdy_network_transaction_unittest.cc',
       'spdy/spdy_pinnable_buffer_piece_test.cc',
       'spdy/spdy_prefixed_buffer_reader_test.cc',
       'spdy/spdy_priority_tree_test.cc',
       'spdy/spdy_protocol_test.cc',
       'spdy/spdy_proxy_client_socket_unittest.cc',
       'spdy/spdy_read_queue_unittest.cc',
@@ skipping 222 matching lines @@
       'docs/bug-triage.md',
       'docs/bug-triage-labels.md',
       'docs/bug-triage-suggested-workflow.md',
       'docs/code-patterns.md',
       'docs/life-of-a-url-request.md',
       'sdch/README.md',
     ],
     'net_docs_output_dir': '<(PRODUCT_DIR)/net/docs',
   }
 }