Remove default key slot from KeygenHandler.

net/base/keygen_handler_nss.cc

Index: net/base/keygen_handler_nss.cc
diff --git a/net/base/keygen_handler_nss.cc b/net/base/keygen_handler_nss.cc
index e5f28ac190830b497c7387e50e8c9f6af7a2cac6..a35ece8d8a2371c8acc6d3b9fa1fd745130a5d82 100644
--- a/net/base/keygen_handler_nss.cc
+++ b/net/base/keygen_handler_nss.cc
@@ -7,8 +7,6 @@
 #include "base/logging.h"
 #include "crypto/nss_crypto_module_delegate.h"
 #include "crypto/nss_util.h"
-#include "crypto/nss_util_internal.h"
-#include "crypto/scoped_nss_types.h"
 #include "net/third_party/mozilla_security_manager/nsKeygenHandler.h"
 
 // PSM = Mozilla's Personal Security Manager.
@@ -17,35 +15,33 @@ namespace psm = mozilla_security_manager;
 namespace net {
 
 std::string KeygenHandler::GenKeyAndSignChallenge() {
-  // Ensure NSS is initialized.
   crypto::EnsureNSSInit();
 
-  crypto::ScopedPK11Slot slot;
-  if (crypto_module_delegate_)
-    slot = crypto_module_delegate_->RequestSlot().Pass();
-  else
-    slot.reset(crypto::GetPersistentNSSKeySlot());
-  if (!slot.get()) {
-    LOG(ERROR) << "Couldn't get private key slot from NSS!";
+  if (!slot_) {
+    LOG(ERROR) << "No slot set.";
     return std::string();
   }
 
   // Authenticate to the token.
   if (SECSuccess !=
       PK11_Authenticate(
-          slot.get(),
+          slot_.get(),
           PR_TRUE,
           crypto_module_delegate_ ? crypto_module_delegate_->wincx() : NULL)) {
     LOG(ERROR) << "Couldn't authenticate to private key slot!";
     return std::string();
   }
 
-  return psm::GenKeyAndSignChallenge(key_size_in_bits_, challenge_, url_,
-                                     slot.get(), stores_key_);
+  return psm::GenKeyAndSignChallenge(
+      key_size_in_bits_, challenge_, url_, slot_.get(), stores_key_);
+}
+
+void KeygenHandler::set_key_slot(crypto::ScopedPK11Slot slot) {
+  slot_ = slot.Pass();
 }
 
 void KeygenHandler::set_crypto_module_delegate(
-      scoped_ptr<crypto::NSSCryptoModuleDelegate> delegate) {
+    scoped_ptr<crypto::CryptoModuleBlockingPasswordDelegate> delegate) {
   crypto_module_delegate_ = delegate.Pass();
 }