[webcrypto] Implicitly set public keys to extractable.

content/renderer/webcrypto/webcrypto_impl.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/webcrypto/webcrypto_impl.h"
 
 #include <algorithm>
 #include <functional>
 #include <map>
 #include "base/json/json_reader.h"
@@ skipping 197 matching lines @@
     blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
     blink::WebCryptoKey private_key = blink::WebCryptoKey::createNull();
     if (!GenerateKeyPairInternal(
              algorithm, extractable, usage_mask, &public_key, &private_key)) {
       result.completeWithError();
     } else {
       DCHECK(public_key.handle());
       DCHECK(private_key.handle());
       DCHECK_EQ(algorithm.id(), public_key.algorithm().id());
       DCHECK_EQ(algorithm.id(), private_key.algorithm().id());
-      // TODO(padolph): The public key should probably always be extractable,
-      // regardless of the input 'extractable' parameter, but that is not called
-      // out in the Web Crypto API spec.
-      // See https://www.w3.org/Bugs/Public/show_bug.cgi?id=23695
-      DCHECK_EQ(extractable, public_key.extractable());
+      DCHECK_EQ(true, public_key.extractable());
       DCHECK_EQ(extractable, private_key.extractable());
       DCHECK_EQ(usage_mask, public_key.usages());
       DCHECK_EQ(usage_mask, private_key.usages());
       result.completeWithKeyPair(public_key, private_key);
     }
   } else {
     blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
     if (!GenerateKeyInternal(algorithm, extractable, usage_mask, &key)) {
       result.completeWithError();
     } else {
@@ skipping 352 matching lines @@
     // TODO(padolph): JWK import RSA public key
     return false;
   } else {
     return false;
   }
 
   return true;
 }
 
 }  // namespace content