Update makefiles after merge of Chromium at 278252

This commit was generated by merge_from_chromium.py.

Change-Id: Ibf6d6eded4ac7e9d71720618237e706866310d40
diff --git a/libsrtp.target.linux-arm64.mk b/libsrtp.target.linux-arm64.mk
index ca51ff0..8bf2aca 100644
--- a/libsrtp.target.linux-arm64.mk
+++ b/libsrtp.target.linux-arm64.mk
@@ -119,6 +119,7 @@
 	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
+	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
 	'-DVIDEO_HOLE=1' \
 	'-DUSE_OPENSSL=1' \
 	'-DUSE_OPENSSL_CERTS=1' \
@@ -224,6 +225,7 @@
 	'-DDATA_REDUCTION_DEV_HOST="http://proxy-dev.googlezip.net:80/"' \
 	'-DSPDY_PROXY_AUTH_ORIGIN="https://proxy.googlezip.net:443/"' \
 	'-DDATA_REDUCTION_PROXY_PROBE_URL="http://check.googlezip.net/connect"' \
+	'-DDATA_REDUCTION_PROXY_WARMUP_URL="http://www.gstatic.com/generate_204"' \
 	'-DVIDEO_HOLE=1' \
 	'-DUSE_OPENSSL=1' \
 	'-DUSE_OPENSSL_CERTS=1' \