chromeos: Remove CryptohomeLibrary::TpmGetPassword and TpmIsReady

chromeos/dbus/cryptohome_client.h

 // Copyright (c) 2012 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 CHROMEOS_DBUS_CRYPTOHOME_CLIENT_H_
 #define CHROMEOS_DBUS_CRYPTOHOME_CLIENT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 15 matching lines @@
 class CHROMEOS_EXPORT CryptohomeClient {
  public:
   // A callback to handle AsyncCallStatus signals.
   typedef base::Callback<void(int async_id, bool return_status, int return_code)
                          > AsyncCallStatusHandler;
   // A callback to handle responses of AsyncXXX methods.
   typedef base::Callback<void(int async_id)> AsyncMethodCallback;
   // A callback to handle responses of methods returning a bool value.
   typedef base::Callback<void(DBusMethodCallStatus call_status,
                               bool result)> BoolMethodCallback;
+  // A callback to handle responses of methods returning a string value.
+  typedef base::Callback<void(DBusMethodCallStatus call_status,
+                              const std::string& result)> StringMethodCallback;
   // A callback to handle responses of Pkcs11GetTpmTokenInfo method.
   typedef base::Callback<void(
       DBusMethodCallStatus call_status,
       const std::string& label,
       const std::string& user_pin)> Pkcs11GetTpmTokenInfoCallback;
 
   virtual ~CryptohomeClient();
 
   // Factory function, creates a new instance and returns ownership.
   // For normal usage, access the singleton via DBusThreadManager::Get().
@@ skipping 44 matching lines @@
   // succeeds.
   virtual void AsyncMount(const std::string& username,
                           const std::string& key,
                           const bool create_if_missing,
                           const AsyncMethodCallback& callback) = 0;
 
   // Calls AsyncMountGuest method.  |callback| is called after the method call
   // succeeds.
   virtual void AsyncMountGuest(const AsyncMethodCallback& callback) = 0;
 
-  // Calls TpmIsReady method and returns true when the call succeeds.
-  // This method blocks until the call returns.
-  virtual bool TpmIsReady(bool* ready) = 0;
+  // Calls TpmIsReady method.
+  virtual void TpmIsReady(const BoolMethodCallback& callback) = 0;
 
   // Calls TpmIsEnabled method.
   virtual void TpmIsEnabled(const BoolMethodCallback& callback) = 0;
 
   // Calls TpmIsEnabled method and returns true when the call succeeds.
   // This method blocks until the call returns.
   // TODO(hashimoto): Remove this method. crosbug.com/28500
   virtual bool CallTpmIsEnabledAndBlock(bool* enabled) = 0;
 
-  // Calls TpmGetPassword method and returns true when the call succeeds.
-  // This method blocks until the call returns.
-  // The original content of |password| is lost.
-  virtual bool TpmGetPassword(std::string* password) = 0;
+  // Calls TpmGetPassword method.
+  virtual void TpmGetPassword(const StringMethodCallback& callback) = 0;
 
   // Calls TpmIsOwned method and returns true when the call succeeds.
   // This method blocks until the call returns.
   virtual bool TpmIsOwned(bool* owned) = 0;
 
   // Calls TpmIsBeingOwned method and returns true when the call succeeds.
   // This method blocks until the call returns.
   virtual bool TpmIsBeingOwned(bool* owning) = 0;
 
   // Calls TpmCanAttemptOwnership method and returns true when the call
@@ skipping 44 matching lines @@
   // Create() should be used instead.
   CryptohomeClient();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CryptohomeClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_CRYPTOHOME_CLIENT_H_