Add enable_reporting to fix size regression in Cronet.

net/BUILD.gn

Index: net/BUILD.gn
diff --git a/net/BUILD.gn b/net/BUILD.gn
index b4af1e1add2ef4178cf56ba3833cf41e612c2c42..883e48ef32e547b128f21bdff088ec5386240bf8 100644
--- a/net/BUILD.gn
+++ b/net/BUILD.gn
@@ -51,6 +51,7 @@ buildflag_header("features") {
     "DISABLE_FILE_SUPPORT=$disable_file_support",
     "DISABLE_FTP_SUPPORT=$disable_ftp_support",
     "ENABLE_MDNS=$enable_mdns",
+    "ENABLE_REPORTING=$enable_reporting",
     "ENABLE_WEBSOCKETS=$enable_websockets",
     "USE_BYTE_CERTS=$use_byte_certs",
   ]
@@ -1417,40 +1418,6 @@ component("net") {
       "quic/quartc/quartc_stream.h",
       "quic/quartc/quartc_stream_interface.h",
       "quic/quartc/quartc_task_runner_interface.h",
-      "reporting/reporting_browsing_data_remover.cc",
-      "reporting/reporting_browsing_data_remover.h",
-      "reporting/reporting_cache.cc",
-      "reporting/reporting_cache.h",
-      "reporting/reporting_client.cc",
-      "reporting/reporting_client.h",
-      "reporting/reporting_context.cc",
-      "reporting/reporting_context.h",
-      "reporting/reporting_delegate.cc",
-      "reporting/reporting_delegate.h",
-      "reporting/reporting_delivery_agent.cc",
-      "reporting/reporting_delivery_agent.h",
-      "reporting/reporting_endpoint_manager.cc",
-      "reporting/reporting_endpoint_manager.h",
-      "reporting/reporting_feature.cc",
-      "reporting/reporting_feature.h",
-      "reporting/reporting_garbage_collector.cc",
-      "reporting/reporting_garbage_collector.h",
-      "reporting/reporting_header_parser.cc",
-      "reporting/reporting_header_parser.h",
-      "reporting/reporting_network_change_observer.cc",
-      "reporting/reporting_network_change_observer.h",
-      "reporting/reporting_observer.cc",
-      "reporting/reporting_observer.h",
-      "reporting/reporting_persister.cc",
-      "reporting/reporting_persister.h",
-      "reporting/reporting_policy.cc",
-      "reporting/reporting_policy.h",
-      "reporting/reporting_report.cc",
-      "reporting/reporting_report.h",
-      "reporting/reporting_service.cc",
-      "reporting/reporting_service.h",
-      "reporting/reporting_uploader.cc",
-      "reporting/reporting_uploader.h",
       "sdch/sdch_owner.cc",
       "sdch/sdch_owner.h",
       "socket/client_socket_factory.cc",
@@ -1737,6 +1704,45 @@ component("net") {
       "//third_party/zlib",
     ]
 
+    if (enable_reporting) {
+      sources += [
+        "reporting/reporting_browsing_data_remover.cc",
+        "reporting/reporting_browsing_data_remover.h",
+        "reporting/reporting_cache.cc",
+        "reporting/reporting_cache.h",
+        "reporting/reporting_client.cc",
+        "reporting/reporting_client.h",
+        "reporting/reporting_context.cc",
+        "reporting/reporting_context.h",
+        "reporting/reporting_delegate.cc",
+        "reporting/reporting_delegate.h",
+        "reporting/reporting_delivery_agent.cc",
+        "reporting/reporting_delivery_agent.h",
+        "reporting/reporting_endpoint_manager.cc",
+        "reporting/reporting_endpoint_manager.h",
+        "reporting/reporting_feature.cc",
+        "reporting/reporting_feature.h",
+        "reporting/reporting_garbage_collector.cc",
+        "reporting/reporting_garbage_collector.h",
+        "reporting/reporting_header_parser.cc",
+        "reporting/reporting_header_parser.h",
+        "reporting/reporting_network_change_observer.cc",
+        "reporting/reporting_network_change_observer.h",
+        "reporting/reporting_observer.cc",
+        "reporting/reporting_observer.h",
+        "reporting/reporting_persister.cc",
+        "reporting/reporting_persister.h",
+        "reporting/reporting_policy.cc",
+        "reporting/reporting_policy.h",
+        "reporting/reporting_report.cc",
+        "reporting/reporting_report.h",
+        "reporting/reporting_service.cc",
+        "reporting/reporting_service.h",
+        "reporting/reporting_uploader.cc",
+        "reporting/reporting_uploader.h",
+      ]
+    }
+
     if (!use_kerberos) {
       sources -= [
         "http/http_auth_handler_negotiate.cc",
@@ -4936,18 +4942,6 @@ test("net_unittests") {
     "quic/quartc/quartc_session_test.cc",
     "quic/quartc/quartc_stream_test.cc",
     "quic/test_tools/crypto_test_utils_test.cc",
-    "reporting/reporting_browsing_data_remover_unittest.cc",
-    "reporting/reporting_cache_unittest.cc",
-    "reporting/reporting_delivery_agent_unittest.cc",
-    "reporting/reporting_endpoint_manager_unittest.cc",
-    "reporting/reporting_garbage_collector_unittest.cc",
-    "reporting/reporting_header_parser_unittest.cc",
-    "reporting/reporting_network_change_observer_unittest.cc",
-    "reporting/reporting_persister_unittest.cc",
-    "reporting/reporting_service_unittest.cc",
-    "reporting/reporting_test_util.cc",
-    "reporting/reporting_test_util.h",
-    "reporting/reporting_uploader_unittest.cc",
     "sdch/sdch_owner_unittest.cc",
     "socket/client_socket_pool_base_unittest.cc",
     "socket/mock_client_socket_pool_manager.cc",
@@ -5110,6 +5104,24 @@ test("net_unittests") {
     "//url",
     "//url:url_features",
   ]
+
+  if (enable_reporting) {
+    sources += [
+      "reporting/reporting_browsing_data_remover_unittest.cc",
+      "reporting/reporting_cache_unittest.cc",
+      "reporting/reporting_delivery_agent_unittest.cc",
+      "reporting/reporting_endpoint_manager_unittest.cc",
+      "reporting/reporting_garbage_collector_unittest.cc",
+      "reporting/reporting_header_parser_unittest.cc",
+      "reporting/reporting_network_change_observer_unittest.cc",
+      "reporting/reporting_persister_unittest.cc",
+      "reporting/reporting_service_unittest.cc",
+      "reporting/reporting_test_util.cc",
+      "reporting/reporting_test_util.h",
+      "reporting/reporting_uploader_unittest.cc",
+    ]
+  }
+
   if (!is_proto_quic) {
     deps += [
       ":extras",