GN: Change rtc_source_set targets --> rtc_static_library

webrtc/api/BUILD.gn

 # Copyright (c) 2015 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")
 if (is_android) {
@@ skipping 25 matching lines @@
 
 config("libjingle_peerconnection_warnings_config") {
   # GN orders flags on a target before flags from configs. The default config
   # adds these flags so to cancel them out they need to come from a config and
   # cannot be on the target directly.
   if (!is_win && !is_clang) {
     cflags = [ "-Wno-maybe-uninitialized" ]  # Only exists for GCC.
   }
 }
 
-rtc_source_set("libjingle_peerconnection") {
+rtc_static_library("libjingle_peerconnection") {
   cflags = []
   sources = [
     "audiotrack.cc",
     "audiotrack.h",
     "datachannel.cc",
     "datachannel.h",
     "datachannelinterface.h",
     "dtmfsender.cc",
     "dtmfsender.h",
     "dtmfsenderinterface.h",
@@ skipping 96 matching lines @@
     # for a target before flags from configs, the only way to disable such
     # warnings is by having them in a separate config, loaded from the target.
     if (!is_win) {
       cflags = [
         "-Wno-sign-compare",
         "-Wno-unused-variable",
       ]
     }
   }
 
-  rtc_source_set("libjingle_peerconnection_jni") {
+  rtc_static_library("libjingle_peerconnection_jni") {
     sources = [
       "android/jni/androidmediacodeccommon.h",
       "android/jni/androidmediadecoder_jni.cc",
       "android/jni/androidmediadecoder_jni.h",
       "android/jni/androidmediaencoder_jni.cc",
       "android/jni/androidmediaencoder_jni.h",
       "android/jni/androidmetrics_jni.cc",
       "android/jni/androidnetworkmonitor_jni.cc",
       "android/jni/androidnetworkmonitor_jni.h",
       "android/jni/androidvideotracksource_jni.cc",
@@ skipping 290 matching lines @@
 
       shared_libraries = [ ":libjingle_peerconnection_so" ]
     }
 
     android_resources("libjingle_peerconnection_android_unittest_resources") {
       resource_dirs = [ "androidtests/res" ]
       custom_package = "org.webrtc"
     }
   }
 }