webcrypto: Add ECDSA algorithm (chromium-side)

content/child/webcrypto/algorithm_registry.cc

Index: content/child/webcrypto/algorithm_registry.cc
diff --git a/content/child/webcrypto/algorithm_registry.cc b/content/child/webcrypto/algorithm_registry.cc
index 7f674db0bbe7e68c3268f07b661203127d30bf3c..51dd6592764ea968b1a8302830caee79fc3d3612 100644
--- a/content/child/webcrypto/algorithm_registry.cc
+++ b/content/child/webcrypto/algorithm_registry.cc
@@ -27,7 +27,8 @@ class AlgorithmRegistry {
         hmac_(CreatePlatformHmacImplementation()),
         rsa_ssa_(CreatePlatformRsaSsaImplementation()),
         rsa_oaep_(CreatePlatformRsaOaepImplementation()),
-        rsa_pss_(CreatePlatformRsaPssImplementation()) {
+        rsa_pss_(CreatePlatformRsaPssImplementation()),
+        ecdsa_(CreatePlatformEcdsaImplementation()) {
     PlatformInit();
   }
 
@@ -55,6 +56,8 @@ class AlgorithmRegistry {
         return rsa_oaep_.get();
       case blink::WebCryptoAlgorithmIdRsaPss:
         return rsa_pss_.get();
+      case blink::WebCryptoAlgorithmIdEcdsa:
+        return ecdsa_.get();
       default:
         return NULL;
     }
@@ -70,6 +73,7 @@ class AlgorithmRegistry {
   const scoped_ptr<AlgorithmImplementation> rsa_ssa_;
   const scoped_ptr<AlgorithmImplementation> rsa_oaep_;
   const scoped_ptr<AlgorithmImplementation> rsa_pss_;
+  const scoped_ptr<AlgorithmImplementation> ecdsa_;
 };
 
 }  // namespace