Relanding: Removing #defines previously used for building without BoringSSL/OpenSSL.

webrtc/BUILD.gn

Index: webrtc/BUILD.gn
diff --git a/webrtc/BUILD.gn b/webrtc/BUILD.gn
index 805eaf0d847e3480c55039a46ba3c8fdeb7c8350..676ea8c460cb3fed2d834aa4e5ef2c7cdcd8e690 100644
--- a/webrtc/BUILD.gn
+++ b/webrtc/BUILD.gn
@@ -30,7 +30,6 @@ config("common_inherited_config") {
     defines = [
       # TODO(kjellander): Cleanup unused ones and move defines closer to
       # the source when webrtc:4256 is completed.
-      "FEATURE_ENABLE_SSL",
       "FEATURE_ENABLE_VOICEMAIL",
       "EXPAT_RELATIVE_PATH",
       "GTEST_RELATIVE_PATH",
@@ -132,12 +131,10 @@ config("common_config") {
       # targets, there's no point including the defines in that config here.
       # TODO(kjellander): Cleanup unused ones and move defines closer to the
       # source when webrtc:4256 is completed.
-      "HAVE_OPENSSL_SSL_H",

[kjellander_webrtc, 2017/01/20 07:33:52]

This define is still mentioned in
https://cs.chromium.org/chromium/src/third_party/usrsctp/localchanges.patch but
I don't see the output of that patch living anywhere. Should we clean it up?

[Taylor Brandstetter, 2017/01/20 18:26:15]

It looks like localchanges.patch is dead, and just wasn't removed by
https://chromiumcodereview.appspot.com/23960004. I'll remove it.

       "HAVE_SRTP",
       "HAVE_WEBRTC_VIDEO",
       "HAVE_WEBRTC_VOICE",
       "LOGGING_INSIDE_WEBRTC",
-      "SSL_USE_OPENSSL",

[kjellander_webrtc, 2017/01/20 07:33:52]

Same as for HAVE_OPENSSL_SSL_H above.

       "USE_WEBRTC_DEV_BRANCH",
     ]
   } else {