Implement PBKDF2 (except for generateKey) using BoringSSL

content/child/webcrypto/nss/util_nss.cc

Index: content/child/webcrypto/nss/util_nss.cc
diff --git a/content/child/webcrypto/nss/util_nss.cc b/content/child/webcrypto/nss/util_nss.cc
index 4b604d8080d7a6871c334df75618cb41369b4e3a..e313a55a967350163128f36ef15a0b0ba76498ee 100644
--- a/content/child/webcrypto/nss/util_nss.cc
+++ b/content/child/webcrypto/nss/util_nss.cc
@@ -106,6 +106,12 @@ AlgorithmImplementation* CreatePlatformHkdfImplementation() {
   return NULL;
 }
 
+AlgorithmImplementation* CreatePlatformPbkdf2Implementation() {
+  // PBKDF2 will only be implemented for BoringSSL, since the NSS
+  // implementation is being deprecated.
+  return NULL;
+}
+
 }  // namespace webcrypto
 
 }  // namespace content