Opt out of "Migrate the Android Support Lib to android_deps".

(to unblock DEPS roll)

Bug: chromium:794210, webrtc:9118
TBR: phoglund@webrtc.org
Change-Id: I7a97f1493b970f923f799a9e9e6fe9e924ad1dcf
Reviewed-on: https://webrtc-review.googlesource.com/67061
Commit-Queue: Oleh Prypin <oprypin@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22749}

.gn

@@ -76,6 +76,10 @@ default_args = {
   # WebRTC relies on Chromium's Android test infrastructure.
   use_cxx11_on_android = false
 
+  # Opt out of "Migrate the Android Support Lib to android_deps".
+  # http://bugs.webrtc.org/9118
+  enable_android_deps_repository = false
+
   # WebRTC does not provide the gflags dependency. Because libyuv uses it only
   # for unittests, it can be disabled (see third_party/libyuv/BUILD.gn)
   libyuv_use_gflags = false