Add missing QUICHE header files to BUILD.gn.

Add four header files that are included from files already
in BUILD.gn.

After this change, every *.h, *.cc, and *.inc in QUICHE is listed in
BUILD.gn other than common_cert_set_[23][ab].inc,
quic_interval_deque_test.cc, and the entire
quic/qbone subdirectory.

Change-Id: Ic90e50a88f69a3be0e59b350915abd99017ac64a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2011061
Commit-Queue: Bence Béky <bnc@chromium.org>
Reviewed-by: Ryan Hamilton <rch@chromium.org>
Cr-Commit-Position: refs/heads/master@{#733967}

net/BUILD.gn

@@ -1345,6 +1345,7 @@ component("net") {
       "third_party/quiche/src/quic/core/frames/quic_streams_blocked_frame.h",
       "third_party/quiche/src/quic/core/frames/quic_window_update_frame.cc",
       "third_party/quiche/src/quic/core/frames/quic_window_update_frame.h",
+      "third_party/quiche/src/quic/core/handshaker_delegate_interface.h",
       "third_party/quiche/src/quic/core/http/http_constants.h",
       "third_party/quiche/src/quic/core/http/http_decoder.cc",
       "third_party/quiche/src/quic/core/http/http_decoder.h",
@@ -1474,6 +1475,7 @@ component("net") {
       "third_party/quiche/src/quic/core/quic_framer.cc",
       "third_party/quiche/src/quic/core/quic_framer.h",
       "third_party/quiche/src/quic/core/quic_interval.h",
+      "third_party/quiche/src/quic/core/quic_interval_deque.h",
       "third_party/quiche/src/quic/core/quic_interval_set.h",
       "third_party/quiche/src/quic/core/quic_lru_cache.h",
       "third_party/quiche/src/quic/core/quic_mtu_discovery.cc",
@@ -1551,6 +1553,7 @@ component("net") {
       "third_party/quiche/src/quic/platform/api/quic_containers.h",
       "third_party/quiche/src/quic/platform/api/quic_error_code_wrappers.h",
       "third_party/quiche/src/quic/platform/api/quic_estimate_memory_usage.h",
+      "third_party/quiche/src/quic/platform/api/quic_export.h",
       "third_party/quiche/src/quic/platform/api/quic_exported_stats.h",
       "third_party/quiche/src/quic/platform/api/quic_fallthrough.h",
       "third_party/quiche/src/quic/platform/api/quic_file_utils.cc",
@@ -3428,6 +3431,7 @@ source_set("quic_test_tools") {
     "third_party/quiche/src/quic/test_tools/quic_flow_controller_peer.h",
     "third_party/quiche/src/quic/test_tools/quic_framer_peer.cc",
     "third_party/quiche/src/quic/test_tools/quic_framer_peer.h",
+    "third_party/quiche/src/quic/test_tools/quic_interval_deque_peer.h",
     "third_party/quiche/src/quic/test_tools/quic_packet_creator_peer.cc",
     "third_party/quiche/src/quic/test_tools/quic_packet_creator_peer.h",
     "third_party/quiche/src/quic/test_tools/quic_sent_packet_manager_peer.cc",