[cast_channel] Move cast_channel related files from //extensions to //components

components/cast_channel/BUILD.gn

Index: components/cast_channel/BUILD.gn
diff --git a/components/cast_channel/BUILD.gn b/components/cast_channel/BUILD.gn
index ef44a6e87358ea7a760ca231e2da180290d484b9..71f791ed1be20e2950bb92eadca09706922d0888 100644
--- a/components/cast_channel/BUILD.gn
+++ b/components/cast_channel/BUILD.gn
@@ -4,10 +4,77 @@
 
 static_library("cast_channel") {
   sources = [
+    "cast_auth_util.cc",
+    "cast_auth_util.h",
     "cast_channel_enum.cc",
     "cast_channel_enum.h",
+    "cast_framer.cc",
+    "cast_framer.h",
+    "cast_message_util.cc",
+    "cast_message_util.h",
+    "cast_socket.cc",
+    "cast_socket.h",
+    "cast_socket_service.cc",
+    "cast_socket_service.h",
+    "cast_socket_service_factory.cc",
+    "cast_socket_service_factory.h",
+    "cast_transport.cc",
+    "cast_transport.h",
+    "keep_alive_delegate.cc",
+    "keep_alive_delegate.h",
+    "logger.cc",
+    "logger.h",
   ]
   deps = [
     "//base",
+    "//components/cast_certificate",
+    "//components/cast_channel/proto:cast_channel_proto",
+    "//components/keyed_service/content",
+    "//components/keyed_service/core",
+    "//content/public/browser",
+    "//crypto",
+    "//net",
+  ]
+}
+
+static_library("test_support") {
+  testonly = true
+  sources = [
+    "cast_test_util.cc",
+    "cast_test_util.h",
+  ]
+  deps = [
+    ":cast_channel",
+    "//base",
+    "//components/cast_channel/proto:cast_channel_proto",
+    "//net",
+    "//testing/gmock",
+    "//testing/gtest",
+  ]
+}
+
+source_set("unit_tests") {
+  testonly = true
+  sources = [
+    "cast_auth_util_unittest.cc",
+    "cast_framer_unittest.cc",
+    "cast_socket_service_unittest.cc",
+    "cast_socket_unittest.cc",
+    "cast_transport_unittest.cc",
+    "keep_alive_delegate_unittest.cc",
+    "logger_unittest.cc",
+  ]
+  deps = [
+    ":cast_channel",
+    ":test_support",
+    "//base/test:test_support",
+    "//components/cast_certificate",
+    "//components/cast_certificate:test_support",
+    "//components/cast_certificate/proto:unittest_proto",
+    "//components/cast_channel/proto:cast_channel_proto",
+    "//content/test:test_support",
+    "//net:test_support",
+    "//testing/gmock",
+    "//testing/gtest",
   ]
 }