chromeos: Move src/chrome/browser/chromeos/cryptohome to src/chromeos

chrome/browser/chromeos/cryptohome/async_method_caller.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 CHROME_BROWSER_CHROMEOS_CRYPTOHOME_ASYNC_METHOD_CALLER_H_
-#define CHROME_BROWSER_CHROMEOS_CRYPTOHOME_ASYNC_METHOD_CALLER_H_
-
-#include <string>
-
-#include "base/callback.h"
-#include "third_party/cros_system_api/dbus/service_constants.h"
-
-namespace cryptohome {
-
-// This class manages calls to Cryptohome service's 'async' methods.
-// Note: This class is placed in ::cryptohome instead of ::chromeos::cryptohome
-// since there is already a namespace ::cryptohome which holds the error code
-// enum (MountError) and referencing ::chromeos::cryptohome and ::cryptohome
-// within the same code is confusing.
-class AsyncMethodCaller {
- public:
-  // A callback type which is called back on the UI thread when the results of
-  // method calls are ready.
-  typedef base::Callback<void(bool success, MountError return_code)> Callback;
-
-  virtual ~AsyncMethodCaller() {}
-
-  // Asks cryptohomed to asynchronously try to find the cryptohome for
-  // |user_email| and then use |passhash| to unlock the key.
-  // |callback| will be called with status info on completion.
-  virtual void AsyncCheckKey(const std::string& user_email,
-                             const std::string& passhash,
-                             Callback callback) = 0;
-
-  // Asks cryptohomed to asynchronously try to find the cryptohome for
-  // |user_email| and then change from using |old_hash| to lock the
-  // key to using |new_hash|.
-  // |callback| will be called with status info on completion.
-  virtual void AsyncMigrateKey(const std::string& user_email,
-                               const std::string& old_hash,
-                               const std::string& new_hash,
-                               Callback callback) = 0;
-
-  // Asks cryptohomed to asynchronously try to find the cryptohome for
-  // |user_email| and then mount it using |passhash| to unlock the key.
-  // |create_if_missing| controls whether or not we ask cryptohomed to
-  // create a new home dir if one does not yet exist for |user_email|.
-  // |callback| will be called with status info on completion.
-  // If |create_if_missing| is false, and no cryptohome exists for |user_email|,
-  // we'll get
-  // callback.Run(false, kCryptohomeMountErrorUserDoesNotExist).
-  // Otherwise, we expect the normal range of return codes.
-  virtual void AsyncMount(const std::string& user_email,
-                          const std::string& passhash,
-                          const bool create_if_missing,
-                          Callback callback) = 0;
-
-  // Asks cryptohomed to asynchronously to mount a tmpfs for guest mode.
-  // |callback| will be called with status info on completion.
-  virtual void AsyncMountGuest(Callback callback) = 0;
-
-  // Asks cryptohomed to asynchronously try to find the cryptohome for
-  // |user_email| and then nuke it.
-  virtual void AsyncRemove(const std::string& user_email,
-                           Callback callback) = 0;
-
-  // Creates the global AsyncMethodCaller instance.
-  static void Initialize();
-
-  // Similar to Initialize(), but can inject an alternative
-  // AsyncMethodCaller such as MockAsyncMethodCaller for testing.
-  // The injected object will be owned by the internal pointer and deleted
-  // by Shutdown().
-  static void InitializeForTesting(AsyncMethodCaller* async_method_caller);
-
-  // Destroys the global AsyncMethodCaller instance if it exists.
-  static void Shutdown();
-
-  // Returns a pointer to the global AsyncMethodCaller instance.
-  // Initialize() should already have been called.
-  static AsyncMethodCaller* GetInstance();
-};
-
-}  // namespace cryptohome
-
-#endif  // CHROME_BROWSER_CHROMEOS_CRYPTOHOME_ASYNC_METHOD_CALLER_H_