Remove now unused Balsa code.

net/BUILD.gn

 # Copyright (c) 2013 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.
 
 import("//build/buildflag_header.gni")
 import("//build/config/chromecast_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
@@ skipping 645 matching lines @@
   if (!disable_file_support) {
     sources += [
       "test/url_request/url_request_mock_http_job.cc",
       "test/url_request/url_request_mock_http_job.h",
       "url_request/test_url_request_interceptor.cc",
       "url_request/test_url_request_interceptor.h",
     ]
   }
 }
 
-source_set("balsa") {
-  sources = [
-    "tools/balsa/balsa_enums.h",
-    "tools/balsa/balsa_frame.cc",
-    "tools/balsa/balsa_frame.h",
-    "tools/balsa/balsa_headers.cc",
-    "tools/balsa/balsa_headers.h",
-    "tools/balsa/balsa_headers_token_utils.cc",
-    "tools/balsa/balsa_headers_token_utils.h",
-    "tools/balsa/balsa_visitor_interface.h",
-    "tools/balsa/http_message_constants.cc",
-    "tools/balsa/http_message_constants.h",
-    "tools/balsa/noop_balsa_visitor.h",
-    "tools/balsa/simple_buffer.cc",
-    "tools/balsa/simple_buffer.h",
-    "tools/balsa/string_piece_utils.h",
-    "tools/quic/spdy_balsa_utils.cc",
-    "tools/quic/spdy_balsa_utils.h",
-  ]
-  deps = [
-    ":net",
-    "//base",
-    "//url",
-  ]
-}
-
 if (use_v8_in_net) {
   component("net_with_v8") {
     sources = [
       "proxy/proxy_resolver_v8.cc",
       "proxy/proxy_resolver_v8.h",
       "proxy/proxy_resolver_v8_tracing.cc",
       "proxy/proxy_resolver_v8_tracing.h",
       "proxy/proxy_resolver_v8_tracing_wrapper.cc",
       "proxy/proxy_resolver_v8_tracing_wrapper.h",
       "proxy/proxy_service_v8.cc",
@@ skipping 346 matching lines @@
       "tools/quic/quic_packet_reader.cc",
       "tools/quic/quic_packet_reader.h",
       "tools/quic/quic_packet_writer_wrapper.cc",
       "tools/quic/quic_packet_writer_wrapper.h",
       "tools/quic/quic_server.cc",
       "tools/quic/quic_server.h",
       "tools/quic/quic_socket_utils.cc",
       "tools/quic/quic_socket_utils.h",
     ]
     deps = [
-      ":balsa",
       ":epoll_server",
       ":net",
       ":simple_quic_tools",
       "//base",
       "//base/third_party/dynamic_annotations",
       "//crypto",
       "//third_party/boringssl",
       "//url",
     ]
   }
 
   executable("epoll_quic_client") {
     sources = [
       "tools/quic/quic_client_bin.cc",
     ]
     deps = [
-      ":balsa",
       ":epoll_quic_tools",
       ":epoll_server",
       ":net",
       ":simple_quic_tools",
       "//base",
       "//build/config/sanitizers:deps",
       "//third_party/boringssl",
     ]
   }
 
   executable("epoll_quic_server") {
     sources = [
       "tools/quic/quic_server_bin.cc",
     ]
     deps = [
-      ":balsa",
       ":epoll_quic_tools",
       ":epoll_server",
       ":net",
       ":simple_quic_tools",
       "//base",
       "//build/config/sanitizers:deps",
       "//third_party/boringssl",
     ]
   }
 }
@@ skipping 75 matching lines @@
     "tools/quic/quic_spdy_client_stream.cc",
     "tools/quic/quic_spdy_client_stream.h",
     "tools/quic/quic_time_wait_list_manager.cc",
     "tools/quic/quic_time_wait_list_manager.h",
     "tools/quic/stateless_rejector.cc",
     "tools/quic/stateless_rejector.h",
     "tools/quic/synchronous_host_resolver.cc",
     "tools/quic/synchronous_host_resolver.h",
   ]
   deps = [
-    ":balsa",
     ":net",
     "//base",
     "//base/third_party/dynamic_annotations",
     "//url",
   ]
 }
 
 if (!is_ios) {
   executable("quic_client") {
     sources = [
@@ skipping 77 matching lines @@
 
   configs += [
     "//build/config:precompiled_headers",
 
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     "//build/config/compiler:no_size_t_to_int_warning",
   ]
   defines = []
 
   deps = [
-    ":balsa",
     ":extras",
     ":net",
     ":simple_quic_tools",
     ":test_support",
     "//base",
     "//base:i18n",
     "//base/third_party/dynamic_annotations",
     "//crypto",
     "//crypto:platform",
     "//crypto:test_support",
@@ skipping 774 matching lines @@
     "http/http_security_headers_hpkp_report_only_fuzzer.cc",
   ]
   deps = [
     ":net_fuzzer_test_support",
     "//base",
     "//net",
     "//url",
   ]
   dict = "data/fuzzer_dictionaries/net_http_security_headers_fuzzer.dict"
 }