Adding macro to enable changing SSL library (Part 1)

build/config/crypto.gni

Index: build/config/crypto.gni
diff --git a/build/config/crypto.gni b/build/config/crypto.gni
index 99ce428d7a1a8ec9667306b9a6ade5eb832b8d74..39a9ce2f047801e75ce3cafe4f754b1e98e2ccb3 100644
--- a/build/config/crypto.gni
+++ b/build/config/crypto.gni
@@ -24,7 +24,10 @@ declare_args() {
 # is unsupported.
 use_openssl_certs = is_android || is_nacl
 
-# True if NSS is used for certificate verification. Note that this is
-# independent from use_openssl. It is possible to use OpenSSL for the crypto
-# library, but NSS for the platform certificate library.
+# True if NSS is used for certificate handling. Note that this is independent
+# from use_openssl. It is possible to use OpenSSL for the crypto library, but
+# NSS for the platform certificate library.
 use_nss_certs = is_linux
+
+# True if NSS is used for certificate verification.

[davidben, 2016/03/17 19:48:08]

Nit: Maybe add "On non-OpenSSL iOS configurations, certificates use the
operating system library, but verification uses the bundled copy of NSS."

[svaldez, 2016/03/17 20:04:18]

Done.

+use_nss_verifier = use_nss_certs || (is_ios && !use_openssl)