Enable GN check on //net.

This should avoid the situation where WebRTC's GN check is green and
Chromium (which turns it ON for //third_party/webrtc) fails.

Bug: webrtc:12614
Change-Id: Id4c06ac57e9faa07c5e43491a61fbc093c68a40d
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/217221
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Reviewed-by: Victor Boivie <boivie@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33900}
diff --git a/.gn b/.gn
index 9c43afd..08f9da91 100644
--- a/.gn
+++ b/.gn
@@ -35,6 +35,7 @@
   "//logging/*",
   "//media/*",
   "//modules/*",
+  "//net/*",
   "//p2p/*",
   "//pc/*",
   "//rtc_base/*",
diff --git a/net/dcsctp/packet/BUILD.gn b/net/dcsctp/packet/BUILD.gn
index b690822..9c08ebc 100644
--- a/net/dcsctp/packet/BUILD.gn
+++ b/net/dcsctp/packet/BUILD.gn
@@ -33,7 +33,10 @@
     "../../../rtc_base:checks",
     "../../../rtc_base:rtc_base_approved",
   ]
-  absl_deps = [ "//third_party/abseil-cpp/absl/strings:strings" ]
+  absl_deps = [
+    "//third_party/abseil-cpp/absl/strings:strings",
+    "//third_party/abseil-cpp/absl/types:optional",
+  ]
   sources = [
     "tlv_trait.cc",
     "tlv_trait.h",
@@ -103,7 +106,11 @@
     "parameter/supported_extensions_parameter.cc",
     "parameter/supported_extensions_parameter.h",
   ]
-  absl_deps = [ "//third_party/abseil-cpp/absl/types:optional" ]
+  absl_deps = [
+    "//third_party/abseil-cpp/absl/algorithm:container",
+    "//third_party/abseil-cpp/absl/strings",
+    "//third_party/abseil-cpp/absl/types:optional",
+  ]
 }
 
 rtc_library("error_cause") {
@@ -151,7 +158,11 @@
     "error_cause/user_initiated_abort_cause.cc",
     "error_cause/user_initiated_abort_cause.h",
   ]
-  absl_deps = [ "//third_party/abseil-cpp/absl/types:optional" ]
+  absl_deps = [
+    "//third_party/abseil-cpp/absl/algorithm:container",
+    "//third_party/abseil-cpp/absl/strings",
+    "//third_party/abseil-cpp/absl/types:optional",
+  ]
 }
 
 rtc_library("chunk") {
@@ -208,7 +219,11 @@
     "chunk/shutdown_complete_chunk.cc",
     "chunk/shutdown_complete_chunk.h",
   ]
-  absl_deps = [ "//third_party/abseil-cpp/absl/types:optional" ]
+  absl_deps = [
+    "//third_party/abseil-cpp/absl/algorithm:container",
+    "//third_party/abseil-cpp/absl/strings",
+    "//third_party/abseil-cpp/absl/types:optional",
+  ]
 }
 
 rtc_library("chunk_validators") {
@@ -265,6 +280,10 @@
       "../../../rtc_base:gunit_helpers",
       "../../../rtc_base:rtc_base_approved",
       "../../../test:test_support",
+      "../common:internal_types",
+      "../common:math",
+      "../public:types",
+      "../testing:testing_macros",
     ]
     sources = [
       "bounded_byte_reader_test.cc",
@@ -314,5 +333,6 @@
       "sctp_packet_test.cc",
       "tlv_trait_test.cc",
     ]
+    absl_deps = [ "//third_party/abseil-cpp/absl/types:optional" ]
   }
 }
diff --git a/net/dcsctp/public/BUILD.gn b/net/dcsctp/public/BUILD.gn
index dc23df6..85cf529 100644
--- a/net/dcsctp/public/BUILD.gn
+++ b/net/dcsctp/public/BUILD.gn
@@ -37,7 +37,10 @@
     "packet_observer.h",
     "timeout.h",
   ]
-  absl_deps = [ "//third_party/abseil-cpp/absl/types:optional" ]
+  absl_deps = [
+    "//third_party/abseil-cpp/absl/strings",
+    "//third_party/abseil-cpp/absl/types:optional",
+  ]
 }
 
 if (rtc_include_tests) {
diff --git a/net/dcsctp/rx/BUILD.gn b/net/dcsctp/rx/BUILD.gn
index 55d3aa6..7b5406b 100644
--- a/net/dcsctp/rx/BUILD.gn
+++ b/net/dcsctp/rx/BUILD.gn
@@ -23,7 +23,10 @@
     "data_tracker.cc",
     "data_tracker.h",
   ]
-  absl_deps = [ "//third_party/abseil-cpp/absl/strings" ]
+  absl_deps = [
+    "//third_party/abseil-cpp/absl/strings",
+    "//third_party/abseil-cpp/absl/types:optional",
+  ]
 }
 
 rtc_source_set("reassembly_streams") {
@@ -81,7 +84,10 @@
     "reassembly_queue.cc",
     "reassembly_queue.h",
   ]
-  absl_deps = [ "//third_party/abseil-cpp/absl/strings" ]
+  absl_deps = [
+    "//third_party/abseil-cpp/absl/strings",
+    "//third_party/abseil-cpp/absl/types:optional",
+  ]
 }
 
 if (rtc_include_tests) {
@@ -91,14 +97,21 @@
     deps = [
       ":data_tracker",
       ":reassembly_queue",
+      ":reassembly_streams",
       ":traditional_reassembly_streams",
       "../../../api:array_view",
       "../../../rtc_base:checks",
       "../../../rtc_base:gunit_helpers",
       "../../../rtc_base:rtc_base_approved",
       "../../../test:test_support",
+      "../common:sequence_numbers",
+      "../packet:chunk",
+      "../packet:data",
+      "../public:types",
       "../testing:data_generator",
+      "../timer",
     ]
+    absl_deps = [ "//third_party/abseil-cpp/absl/types:optional" ]
     sources = [
       "data_tracker_test.cc",
       "reassembly_queue_test.cc",
diff --git a/net/dcsctp/socket/BUILD.gn b/net/dcsctp/socket/BUILD.gn
index 73d3ef2..2fb05ab 100644
--- a/net/dcsctp/socket/BUILD.gn
+++ b/net/dcsctp/socket/BUILD.gn
@@ -68,7 +68,10 @@
     "stream_reset_handler.cc",
     "stream_reset_handler.h",
   ]
-  absl_deps = [ "//third_party/abseil-cpp/absl/types:optional" ]
+  absl_deps = [
+    "//third_party/abseil-cpp/absl/strings",
+    "//third_party/abseil-cpp/absl/types:optional",
+  ]
 }
 
 rtc_library("transmission_control_block") {
@@ -153,7 +156,19 @@
   rtc_source_set("mock_callbacks") {
     testonly = true
     sources = [ "mock_dcsctp_socket_callbacks.h" ]
-    deps = [ "../public:socket" ]
+    deps = [
+      "../../../api:array_view",
+      "../../../rtc_base:logging",
+      "../../../rtc_base:rtc_base_approved",
+      "../../../test:test_support",
+      "../public:socket",
+      "../public:types",
+      "../timer",
+    ]
+    absl_deps = [
+      "//third_party/abseil-cpp/absl/strings",
+      "//third_party/abseil-cpp/absl/types:optional",
+    ]
   }
 
   rtc_source_set("mock_context") {
@@ -162,11 +177,16 @@
     deps = [
       ":context",
       ":mock_callbacks",
+      "../../../test:test_support",
       "../common:internal_types",
       "../packet:sctp_packet",
       "../public:socket",
       "../public:types",
     ]
+    absl_deps = [
+      "//third_party/abseil-cpp/absl/strings",
+      "//third_party/abseil-cpp/absl/types:optional",
+    ]
   }
 
   rtc_library("dcsctp_socket_unittests") {
@@ -175,12 +195,34 @@
     deps = [
       ":dcsctp_socket",
       ":heartbeat_handler",
+      ":mock_callbacks",
+      ":mock_context",
       ":stream_reset_handler",
       "../../../api:array_view",
       "../../../rtc_base:checks",
       "../../../rtc_base:gunit_helpers",
       "../../../rtc_base:rtc_base_approved",
       "../../../test:test_support",
+      "../common:internal_types",
+      "../packet:chunk",
+      "../packet:error_cause",
+      "../packet:parameter",
+      "../packet:sctp_packet",
+      "../packet:tlv_trait",
+      "../public:socket",
+      "../public:types",
+      "../rx:data_tracker",
+      "../rx:reassembly_queue",
+      "../testing:data_generator",
+      "../testing:testing_macros",
+      "../timer",
+      "../tx:mock_send_queue",
+      "../tx:retransmission_queue",
+    ]
+    absl_deps = [
+      "//third_party/abseil-cpp/absl/memory",
+      "//third_party/abseil-cpp/absl/strings",
+      "//third_party/abseil-cpp/absl/types:optional",
     ]
     sources = [
       "dcsctp_socket_test.cc",
diff --git a/net/dcsctp/testing/BUILD.gn b/net/dcsctp/testing/BUILD.gn
index fa20500..5367ef8 100644
--- a/net/dcsctp/testing/BUILD.gn
+++ b/net/dcsctp/testing/BUILD.gn
@@ -20,9 +20,16 @@
     "../../../rtc_base",
     "../../../rtc_base:checks",
     "../../../rtc_base:rtc_base_approved",
+    "../common:internal_types",
+    "../packet:data",
+    "../public:types",
   ]
   sources = [
     "data_generator.cc",
     "data_generator.h",
   ]
+  absl_deps = [
+    "//third_party/abseil-cpp/absl/strings",
+    "//third_party/abseil-cpp/absl/types:optional",
+  ]
 }
diff --git a/net/dcsctp/timer/BUILD.gn b/net/dcsctp/timer/BUILD.gn
index 6354de0..e95ab67 100644
--- a/net/dcsctp/timer/BUILD.gn
+++ b/net/dcsctp/timer/BUILD.gn
@@ -41,7 +41,9 @@
       "../../../rtc_base:gunit_helpers",
       "../../../rtc_base:rtc_base_approved",
       "../../../test:test_support",
+      "../public:socket",
     ]
     sources = [ "timer_test.cc" ]
+    absl_deps = [ "//third_party/abseil-cpp/absl/types:optional" ]
   }
 }
diff --git a/net/dcsctp/tx/BUILD.gn b/net/dcsctp/tx/BUILD.gn
index db11d29..924a194 100644
--- a/net/dcsctp/tx/BUILD.gn
+++ b/net/dcsctp/tx/BUILD.gn
@@ -89,6 +89,7 @@
     "retransmission_queue.h",
   ]
   absl_deps = [
+    "//third_party/abseil-cpp/absl/algorithm:container",
     "//third_party/abseil-cpp/absl/strings",
     "//third_party/abseil-cpp/absl/types:optional",
   ]
@@ -97,7 +98,12 @@
 if (rtc_include_tests) {
   rtc_source_set("mock_send_queue") {
     testonly = true
-    deps = [ ":send_queue" ]
+    deps = [
+      ":send_queue",
+      "../../../api:array_view",
+      "../../../test:test_support",
+    ]
+    absl_deps = [ "//third_party/abseil-cpp/absl/types:optional" ]
     sources = [ "mock_send_queue.h" ]
   }
 
@@ -106,15 +112,24 @@
 
     deps = [
       ":fcfs_send_queue",
+      ":mock_send_queue",
       ":retransmission_error_counter",
       ":retransmission_queue",
       ":retransmission_timeout",
+      ":send_queue",
       "../../../api:array_view",
       "../../../rtc_base:checks",
       "../../../rtc_base:gunit_helpers",
       "../../../rtc_base:rtc_base_approved",
       "../../../test:test_support",
+      "../packet:chunk",
+      "../packet:data",
+      "../public:socket",
+      "../public:types",
+      "../testing:data_generator",
+      "../timer",
     ]
+    absl_deps = [ "//third_party/abseil-cpp/absl/types:optional" ]
     sources = [
       "fcfs_send_queue_test.cc",
       "retransmission_error_counter_test.cc",