Replace woogeen with owt for GN arguments. (#32)

Author: jianjunz

webrtc.gni

@@ -84,7 +84,7 @@ declare_args() {
 
   # Used to specify an external OpenSSL include path when not compiling the
   # library that comes with WebRTC (i.e. rtc_build_ssl == 0).
-  rtc_ssl_root = woogeen_openssl_header_root
+  rtc_ssl_root = owt_openssl_header_root
 
   # Selects fixed-point code where possible.
   rtc_prefer_fixed_point = false
@@ -218,7 +218,7 @@ declare_args() {
   rtc_build_libvpx = !build_with_mozilla
   rtc_libvpx_build_vp9 = !build_with_mozilla
   rtc_build_opus = !build_with_mozilla
-  rtc_build_ssl = !woogeen_use_openssl
+  rtc_build_ssl = !owt_use_openssl
   rtc_build_usrsctp = !build_with_mozilla
 
   # Enable libevent task queues on platforms that support it.