Add missing quiche test sources to net_unittests

Change-Id: Ie0bf69b8c599c46df165e3ca624939ee34dd5dfc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2001186Reviewed-by: Nick Harper <nharper@chromium.org>
Commit-Queue: Dan McArdle <dmcardle@chromium.org>
Cr-Commit-Position: refs/heads/master@{#731715}

net/BUILD.gn

@@ -5383,6 +5383,7 @@ test("net_unittests") {
     "test/run_all_unittests.cc",
     "test/tcp_socket_proxy_unittest.cc",
     "third_party/nist-pkits/pkits_testcases-inl.h",
+    "third_party/quiche/src/common/quiche_data_writer_test.cc",
     "third_party/quiche/src/common/simple_linked_hash_map_test.cc",
     "third_party/quiche/src/http2/decoder/decode_buffer_test.cc",
     "third_party/quiche/src/http2/decoder/decode_http2_structures_test.cc",
@@ -5601,6 +5602,7 @@ test("net_unittests") {
     "third_party/quiche/src/quic/platform/api/quic_mem_slice_test.cc",
     "third_party/quiche/src/quic/platform/api/quic_reference_counted_test.cc",
     "third_party/quiche/src/quic/platform/api/quic_socket_address_test.cc",
+    "third_party/quiche/src/quic/platform/api/quic_string_utils_test.cc",
     "third_party/quiche/src/quic/quic_transport/quic_transport_client_session_test.cc",
     "third_party/quiche/src/quic/quic_transport/quic_transport_integration_test.cc",
     "third_party/quiche/src/quic/quic_transport/quic_transport_server_session_test.cc",
@@ -5638,6 +5640,7 @@ test("net_unittests") {
     "third_party/quiche/src/spdy/core/spdy_frame_reader_test.cc",
     "third_party/quiche/src/spdy/core/spdy_framer_test.cc",
     "third_party/quiche/src/spdy/core/spdy_header_block_test.cc",
+    "third_party/quiche/src/spdy/core/spdy_header_storage_test.cc",
     "third_party/quiche/src/spdy/core/spdy_intrusive_list_test.cc",
     "third_party/quiche/src/spdy/core/spdy_no_op_visitor.cc",
     "third_party/quiche/src/spdy/core/spdy_no_op_visitor.h",