WebCrypto: Add the KeyPair interface.

Source/testing/runner/MockWebCrypto.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 86 matching lines @@
     } else if (input == std::string("\x00\x01\x02\x03\x04\x05", 6)) {
         const unsigned char resultBytes[] = {0x86, 0x84, 0x60, 0xd9, 0x8d, 0x09, 0xd8, 0xbb, 0xb9, 0x3d, 0x7b, 0x6c, 0xdd, 0x15, 0xcc, 0x7f, 0xbe, 0xc6, 0x76, 0xb9};
         result.completeWithBuffer(resultBytes, sizeof(resultBytes));
     } else {
         result.completeWithError();
     }
 }
 
 void MockWebCrypto::generateKey(const WebKit::WebCryptoAlgorithm& algorithm, bool extractable, WebKit::WebCryptoKeyUsageMask usages, WebKit::WebCryptoResult result)
 {
-    result.completeWithKey(WebKit::WebCryptoKey::create(0, WebKit::WebCryptoKeyTypePrivate, extractable, algorithm, usages));
+    if (algorithm.id() == WebKit::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5) {
+        result.completeWithKeyPair(WebKit::WebCryptoKey::create(0, WebKit::WebCryptoKeyTypePublic, extractable, algorithm, usages), WebKit::WebCryptoKey::create(0, WebKit::WebCryptoKeyTypePrivate, extractable, algorithm, usages));
+    } else {
+        result.completeWithKey(WebKit::WebCryptoKey::create(0, WebKit::WebCryptoKeyTypePrivate, extractable, algorithm, usages));
+    }
 }
 
 void MockWebCrypto::importKey(WebKit::WebCryptoKeyFormat, const unsigned char* keyData, size_t keyDataSize, const WebKit::WebCryptoAlgorithm& algorithm, bool extractable, WebKit::WebCryptoKeyUsageMask usages, WebKit::WebCryptoResult result)
 {
     std::string keyDataString(reinterpret_cast<const char*>(keyData), keyDataSize);
 
     if (keyDataString == "error")
         return result.completeWithError();
 
     WebKit::WebCryptoKeyType type = WebKit::WebCryptoKeyTypePrivate;
     if (keyDataString == "public")
         type = WebKit::WebCryptoKeyTypePublic;
 
     result.completeWithKey(WebKit::WebCryptoKey::create(0, type, extractable, algorithm, usages));
 }
 
 } // namespace WebTestRunner