Delete unused classes AutoDetectProxy and SslSocketFactory.

webrtc/base/BUILD.gn

Index: webrtc/base/BUILD.gn
diff --git a/webrtc/base/BUILD.gn b/webrtc/base/BUILD.gn
index 13ad5fdc00cacbc8d833a715323a02c54c1c9141..fca0e0e8f3dbd4b00cc47d8c6beeb1d98c92e0c0 100644
--- a/webrtc/base/BUILD.gn
+++ b/webrtc/base/BUILD.gn
@@ -378,8 +378,6 @@ rtc_static_library("rtc_base") {
     "asynctcpsocket.h",
     "asyncudpsocket.cc",
     "asyncudpsocket.h",
-    "autodetectproxy.cc",
-    "autodetectproxy.h",
     "common.cc",
     "common.h",
     "crc32.cc",
@@ -429,8 +427,6 @@ rtc_static_library("rtc_base") {
     "opensslstreamadapter.h",
     "physicalsocketserver.cc",
     "physicalsocketserver.h",
-    "proxydetect.cc",
-    "proxydetect.h",
     "proxyinfo.cc",
     "proxyinfo.h",
     "ratelimiter.cc",
@@ -469,8 +465,6 @@ rtc_static_library("rtc_base") {
     "sslfingerprint.h",
     "sslidentity.cc",
     "sslidentity.h",
-    "sslsocketfactory.cc",
-    "sslsocketfactory.h",
     "sslstreamadapter.cc",
     "sslstreamadapter.h",
     "stream.cc",
@@ -504,8 +498,6 @@ rtc_static_library("rtc_base") {
     sources += [
       "callback.h",
       "fileutils_mock.h",
-      "httpserver.cc",
-      "httpserver.h",
       "json.cc",
       "json.h",
       "logsinks.cc",
@@ -513,8 +505,6 @@ rtc_static_library("rtc_base") {
       "mathutils.h",
       "optionsfile.cc",
       "optionsfile.h",
-      "proxyserver.cc",
-      "proxyserver.h",
       "rollingaccumulator.h",
       "scopedptrcollection.h",
       "sslroots.h",
@@ -710,12 +700,16 @@ if (rtc_include_tests) {
       "firewallsocketserver.cc",
       "firewallsocketserver.h",
       "gunit.h",
+      "httpserver.cc",
+      "httpserver.h",
       "natserver.cc",
       "natserver.h",
       "natsocketfactory.cc",
       "natsocketfactory.h",
       "nattypes.cc",
       "nattypes.h",
+      "proxyserver.cc",
+      "proxyserver.h",
       "sigslottester.h",
       "sigslottester.h.pump",
       "testbase64.h",
@@ -853,7 +847,6 @@ if (rtc_include_tests) {
   rtc_source_set("rtc_base_unittests") {
     testonly = true
     sources = [
-      "autodetectproxy_unittest.cc",
       "callback_unittest.cc",
       "crc32_unittest.cc",
       "filerotatingstream_unittest.cc",
@@ -869,7 +862,6 @@ if (rtc_include_tests) {
       "network_unittest.cc",
       "optionsfile_unittest.cc",
       "proxy_unittest.cc",
-      "proxydetect_unittest.cc",
       "ratelimiter_unittest.cc",
       "rollingaccumulator_unittest.cc",
       "rtccertificate_unittest.cc",