Get rid of SCHANNEL code.

webrtc/base/sslidentity.cc

Index: webrtc/base/sslidentity.cc
diff --git a/webrtc/base/sslidentity.cc b/webrtc/base/sslidentity.cc
index ed9e5aca93f172010dcc727df197c3e7e32af9d1..ce209dd4167c2211fdc80649be4dca7a48b3b487 100644
--- a/webrtc/base/sslidentity.cc
+++ b/webrtc/base/sslidentity.cc
@@ -21,13 +21,11 @@
 #include "webrtc/base/logging.h"
 #include "webrtc/base/sslconfig.h"
 
-#if SSL_USE_SCHANNEL
-
-#elif SSL_USE_OPENSSL  // !SSL_USE_SCHANNEL
+#if SSL_USE_OPENSSL
 
 #include "webrtc/base/opensslidentity.h"
 
-#endif  // SSL_USE_SCHANNEL
+#endif  // SSL_USE_OPENSSL
 
 namespace rtc {
 
@@ -103,27 +101,7 @@ SSLCertChain::~SSLCertChain() {
   std::for_each(certs_.begin(), certs_.end(), DeleteCert);
 }
 
-#if SSL_USE_SCHANNEL
-
-SSLCertificate* SSLCertificate::FromPEMString(const std::string& pem_string) {
-  return NULL;
-}
-
-SSLIdentity* SSLIdentity::Generate(const std::string& common_name,
-                                   KeyType key_type) {
-  return NULL;
-}
-
-SSLIdentity* GenerateForTest(const SSLIdentityParams& params) {
-  return NULL;
-}
-
-SSLIdentity* SSLIdentity::FromPEMStrings(const std::string& private_key,
-                                         const std::string& certificate) {
-  return NULL;
-}
-
-#elif SSL_USE_OPENSSL  // !SSL_USE_SCHANNEL
+#if SSL_USE_OPENSSL
 
 SSLCertificate* SSLCertificate::FromPEMString(const std::string& pem_string) {
   return OpenSSLCertificate::FromPEMString(pem_string);
@@ -143,10 +121,10 @@ SSLIdentity* SSLIdentity::FromPEMStrings(const std::string& private_key,
   return OpenSSLIdentity::FromPEMStrings(private_key, certificate);
 }
 
-#else  // !SSL_USE_OPENSSL && !SSL_USE_SCHANNEL
+#else  // !SSL_USE_OPENSSL
 
 #error "No SSL implementation"
 
-#endif  // SSL_USE_SCHANNEL
+#endif  // SSL_USE_OPENSSL
 
 }  // namespace rtc