Drop build dependency on webrtc's legacy video_render module.

third_party/libjingle/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")
 
 # From third_party/libjingle/libjingle.gyp's target_defaults.
 config("jingle_unexported_configs") {
   defines = [
     "EXPAT_RELATIVE_PATH",
@@ skipping 397 matching lines @@
 
     configs += [ ":jingle_unexported_configs" ]
     public_configs = [ ":jingle_public_configs" ]
 
     deps = [
       ":libjingle",
       "//third_party/libsrtp",
       "//third_party/webrtc",
       "//third_party/webrtc/modules/media_file",
       "//third_party/webrtc/modules/video_capture",
-      "//third_party/webrtc/modules/video_render",
       "//third_party/webrtc/system_wrappers",
       "//third_party/webrtc/voice_engine",
     ]
 
     if (!is_ios) {
       # TODO(mallinath) - Enable SCTP for iOS.
       sources += [
         "../webrtc/media/sctp/sctpdataengine.cc",
         "../webrtc/media/sctp/sctpdataengine.h",
       ]
       defines = [ "HAVE_SCTP" ]
       deps += [ "//third_party/usrsctp" ]
     }
   }
 
   source_set("libstunprober") {
     p2p_dir = "../webrtc/p2p"
     sources = [
       "$p2p_dir/stunprober/stunprober.cc",
     ]
 
     deps = [
       ":libjingle_webrtc_common",
       "//third_party/webrtc/base:rtc_base",
     ]
   }
 }  # enable_webrtc
 # TODO(GYP): Port libjingle.gyp's enable_webrtc condition block.