Update keygen to use correct NSS slot on ChromeOS multiprofile.

chrome/browser/ui/crypto_module_delegate_nss.h

+// 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.
+
+#ifndef CHROME_BROWSER_UI_CRYPTO_MODULE_DELEGATE_NSS_H_
+#define CHROME_BROWSER_UI_CRYPTO_MODULE_DELEGATE_NSS_H_
+
+#include <string>
+
+#include "base/compiler_specific.h"
+#include "base/synchronization/waitable_event.h"
+#include "chrome/browser/ui/crypto_module_password_dialog.h"
+#include "crypto/nss_crypto_module_delegate.h"
+
+namespace content {
+class ResourceContext;
+}
+
+// Delegate to handle unlocking a slot or indicating which slot to store a key
+// in. When passing to NSS functions which take a wincx argument, use the value
+// returned from the wincx() method.
+class ChromeNSSCryptoModuleDelegate
+    : public crypto::NSSCryptoModuleDelegate {
+ public:
+  // Create a ChromeNSSCryptoModuleDelegate. |reason| is used to select what
+  // string to show the user, |server| is displayed to indicate which connection
+  // is causing the dialog to appear.
+  ChromeNSSCryptoModuleDelegate(chrome::CryptoModulePasswordReason reason,
+                                const std::string& server);
+
+  virtual ~ChromeNSSCryptoModuleDelegate();
+
+  // Must be called on IO thread. Returns true if the delegate is ready for use.
+  // Otherwise, if |initialization_complete_callback| is non-null, the
+  // initialization will proceed asynchronously and the callback will be run
+  // once the delegate is ready to use. In that case, the caller must ensure the
+  // delegate remains alive until the callback is run.
+  bool InitializeSlot(content::ResourceContext* context,
+                      const base::Closure& initialization_complete_callback)
+      WARN_UNUSED_RESULT;
+
+  // crypto::NSSCryptoModuleDelegate implementation.
+  virtual crypto::ScopedPK11Slot RequestSlot() OVERRIDE;
+
+  // crypto::CryptoModuleBlockingPasswordDelegate implementation.
+  virtual std::string RequestPassword(const std::string& slot_name,
+                                      bool retry,
+                                      bool* cancelled) OVERRIDE;
+
+ private:
+  void ShowDialog(const std::string& slot_name, bool retry);
+
+  void GotPassword(const std::string& password);
+
+  void DidGetSlot(const base::Closure& callback, crypto::ScopedPK11Slot slot);
+
+  // Parameters displayed in the dialog.
+  const chrome::CryptoModulePasswordReason reason_;
+  const std::string server_;
+
+  // Event to block worker thread while waiting for dialog on UI thread.
+  base::WaitableEvent event_;
+
+  // Stores the results from the dialog for access on worker thread.
+  std::string password_;
+  bool cancelled_;
+
+  // The slot which will be returned by RequestSlot.
+  crypto::ScopedPK11Slot slot_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeNSSCryptoModuleDelegate);
+};
+
+// Create a delegate which only handles unlocking slots.
+crypto::CryptoModuleBlockingPasswordDelegate*
+    CreateCryptoModuleBlockingPasswordDelegate(
+        chrome::CryptoModulePasswordReason reason,
+        const std::string& server);
+
+#endif  // CHROME_BROWSER_UI_CRYPTO_MODULE_DELEGATE_NSS_H_