Decompose //extensions/browser/BUILD.gn

extensions/browser/api/sockets_tcp_server/BUILD.gn

Index: extensions/browser/api/sockets_tcp_server/BUILD.gn
diff --git a/extensions/browser/api/sockets_tcp_server/BUILD.gn b/extensions/browser/api/sockets_tcp_server/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..bb26b833808e1e1b2d3493d7d9029342a5e29bab
--- /dev/null
+++ b/extensions/browser/api/sockets_tcp_server/BUILD.gn
@@ -0,0 +1,18 @@
+# Copyright 2016 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+source_set("sockets_tcp_server") {
+  sources = [
+    "sockets_tcp_server_api.cc",
+    "sockets_tcp_server_api.h",
+    "tcp_server_socket_event_dispatcher.cc",
+    "tcp_server_socket_event_dispatcher.h",
+  ]
+
+  deps = [
+    "//content/public/browser",
+    "//content/public/common",
+    "//extensions/common/api",
+  ]
+}