Remove third_party/libjingle and update GN targets.

chrome/browser/chromeos/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//extensions/features/features.gni")
 import("//media/media_options.gni")
 import("//printing/features/features.gni")
 import("//third_party/protobuf/proto_library.gni")
@@ skipping 88 matching lines @@
     # TODO: care about enable_basic_printing and enable_print_preview.
     "//components/sync",
     "//printing",
     "//skia",
     "//storage/browser",
     "//storage/common",
     "//third_party/adobe/flash:flapper_version_h",
     "//third_party/cacheinvalidation",
     "//third_party/icu",
     "//third_party/leveldatabase",
-    "//third_party/libjingle",
     "//third_party/libusb",
     "//third_party/protobuf:protobuf_lite",
     "//third_party/protobuf:protoc($host_toolchain)",
     "//third_party/re2",
+    "//third_party/webrtc_overrides",
     "//third_party/zlib",
     "//ui/app_list",
     "//ui/app_list/presenter:mojom",
     "//ui/arc",
     "//ui/aura",
     "//ui/base",
     "//ui/chromeos",
     "//ui/compositor",
     "//ui/display",
     "//ui/events:dom_keycode_converter",
@@ skipping 1654 matching lines @@
     "policy/proto/chrome_device_policy.proto",
     "policy/proto/install_attributes.proto",
   ]
 }
 
 proto_library("attestation_proto") {
   sources = [
     "attestation/attestation_key_payload.proto",
   ]
 }