GN: Change rtc_source_set targets --> rtc_static_library

webrtc/p2p/BUILD.gn

 # Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("../build/webrtc.gni")
 
 group("p2p") {
   public_deps = [
     ":rtc_p2p",
   ]
 }
 
 config("rtc_p2p_inherited_config") {
   defines = [ "FEATURE_ENABLE_VOICEMAIL" ]
 }
 
-rtc_source_set("rtc_p2p") {
+rtc_static_library("rtc_p2p") {
   sources = [
     "base/asyncstuntcpsocket.cc",
     "base/asyncstuntcpsocket.h",
     "base/basicpacketsocketfactory.cc",
     "base/basicpacketsocketfactory.h",
     "base/candidate.h",
     "base/common.h",
     "base/dtlstransport.h",
     "base/dtlstransportchannel.cc",
     "base/dtlstransportchannel.h",
@@ skipping 103 matching lines @@
       "quic/quictransport.h",
       "quic/quictransportchannel.cc",
       "quic/quictransportchannel.h",
       "quic/reliablequicstream.cc",
       "quic/reliablequicstream.h",
     ]
     public_deps += [ "//third_party/libquic" ]
   }
 }
 
-rtc_source_set("libstunprober") {
+rtc_static_library("libstunprober") {
   sources = [
     "stunprober/stunprober.cc",
   ]
 
   if (!build_with_chromium && is_clang) {
     # Suppress warnings from Chrome's Clang plugins.
     # See http://code.google.com/p/webrtc/issues/detail?id=163 for details.
     suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
   }
 
@@ skipping 16 matching lines @@
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
 
     deps = [
       ":libstunprober",
       ":rtc_p2p",
       "../system_wrappers:field_trial_default",
     ]
   }
 }