Remove third_party/libjingle and update GN targets.

third_party/webrtc_overrides/BUILD.gn

-# Copyright 2014 The Chromium Authors. All rights reserved.
+# Copyright 2017 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")
+group("webrtc_overrides") {
+  public_deps = [
+    ":webrtc",
+  ]
+}
 
 config("jingle_unexported_configs") {
   include_dirs = [
     "../../third_party/webrtc_overrides",
     "../../testing/gtest/include",
     "../../third_party",
     "../../third_party/libyuv/include",
     "../../third_party/usrsctp/usrsctplib",
   ]
 }
@@ skipping 10 matching lines @@
   public_deps = [
     "//third_party/expat",
   ]
   deps = [
     "//base",
     "//crypto:platform",
     "//net",
   ]
 }
 
-static_library("libjingle") {
+static_library("webrtc") {
   # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
   configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
 
   public_deps = [
     ":jingle_deps",
 
     # TODO(kjellander): Start cleaning up this target as soon as
     # https://codereview.chromium.org/2022833002/ is landed. The target should
     # be removed entirely if possible.
     "//third_party/libjingle_xmpp:rtc_task_runner",
     "//third_party/webrtc/base:rtc_base",
   ]
   deps = [
     "//third_party/webrtc/p2p:rtc_p2p",
   ]
 
-  # From libjingle_common.gypi's conditions list.
   if (is_win) {
     cflags = [ "/wd4005" ]
   }
 
   if (is_nacl) {
     # For NACL, we have to add a default implementation for field_trail.
     deps += [
       "//native_client_sdk/src/libraries/nacl_io",
       "//third_party/webrtc/system_wrappers:field_trial_default",
     ]
   } else {
     # Otherwise, we just add the field_trial which redirects to base.
     sources = [
-      "../webrtc_overrides/field_trial.cc",
+      "field_trial.cc",
     ]
   }
 
   configs += [
     ":jingle_unexported_configs",
     "//third_party/webrtc:common_config",
   ]
   public_configs = [
     ":jingle_public_configs",
     "//third_party/webrtc:common_inherited_config",
   ]
 }
+
+static_library("init_webrtc") {
+  sources = [
+    "init_webrtc.cc",
+    "init_webrtc.h",
+  ]
+  configs += [
+    ":jingle_unexported_configs",
+    "//third_party/webrtc:common_config",
+  ]
+  public_configs = [
+    ":jingle_public_configs",
+    "//third_party/webrtc:common_inherited_config",
+  ]
+  public_deps = [
+    ":libjingle_webrtc_common",
+  ]
+}
+
+source_set("libjingle_webrtc_common") {
+  configs += [
+    ":jingle_unexported_configs",
+    "//third_party/webrtc:common_config",
+  ]
+  public_configs = [
+    ":jingle_public_configs",
+    "//third_party/webrtc:common_inherited_config",
+  ]
+
+  deps = [
+    ":webrtc",
+    "//third_party/libsrtp",
+    "//third_party/usrsctp",
+    "//third_party/webrtc/api:libjingle_peerconnection",
+    "//third_party/webrtc/media:rtc_media",
+    "//third_party/webrtc/media:rtc_media_base",
+    "//third_party/webrtc/modules/media_file",
+    "//third_party/webrtc/modules/video_capture",
+    "//third_party/webrtc/pc:rtc_pc",
+    "//third_party/webrtc/system_wrappers",
+    "//third_party/webrtc/voice_engine",
+  ]
+}