Built crypto and crypto_unittests for iOS

crypto/rsa_private_key.h

Index: crypto/rsa_private_key.h
diff --git a/crypto/rsa_private_key.h b/crypto/rsa_private_key.h
index 7a1dccd768a9287e295fe5d6345d155a6c7b06df..ff368d82ace88b6576dfdf2d154cce4b8a811ef3 100644
--- a/crypto/rsa_private_key.h
+++ b/crypto/rsa_private_key.h
@@ -14,6 +14,8 @@ typedef struct evp_pkey_st EVP_PKEY;
 // Forward declaration.
 struct SECKEYPrivateKeyStr;
 struct SECKEYPublicKeyStr;
+#elif defined(OS_IOS)
+#include <Security/Security.h>
 #elif defined(OS_MACOSX)
 #include <Security/cssm.h>
 #endif
@@ -217,6 +219,9 @@ class CRYPTO_EXPORT RSAPrivateKey {
 #elif defined(OS_WIN)
   HCRYPTPROV provider() { return provider_; }
   HCRYPTKEY key() { return key_; }
+#elif defined(OS_IOS)
+  SecKeyRef key() { return key_; }
+  SecKeyRef public_key() { return public_key_; }
 #elif defined(OS_MACOSX)
   CSSM_KEY_PTR key() { return &key_; }
   CSSM_KEY_PTR public_key() { return &public_key_; }
@@ -263,6 +268,9 @@ class CRYPTO_EXPORT RSAPrivateKey {
 
   ScopedHCRYPTPROV provider_;
   ScopedHCRYPTKEY key_;
+#elif defined(OS_IOS)
+  SecKeyRef key_;
+  SecKeyRef public_key_;
 #elif defined(OS_MACOSX)
   CSSM_KEY key_;
   CSSM_KEY public_key_;