Determine whether user is ephemeral when coming back from a crash

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_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 43 matching lines @@
   virtual void SetAsyncCallStatusHandler(
       const AsyncCallStatusHandler& handler) = 0;
 
   // Resets AsyncCallStatus signal handler.
   virtual void ResetAsyncCallStatusHandler() = 0;
 
   // Calls IsMounted method and returns true when the call succeeds.
   // This method blocks until the call returns.
   virtual bool IsMounted(bool* is_mounted) = 0;
 
+  // Calls IsMountedForUser and returns true when the call succeeds.

[hashimoto, 2012/05/10 07:41:55]

Please make this method asynchronous, it should be something like:
typedef base::Callback<void(DBusMethodCallStatus call_status, bool is_mounted,
bool is_ephemeral> IsMountedForUserCallback;
virtual void IsMountedForUser(const std::string& username, const
IsMountedForUserCallback& callback) = 0;

I know synchronous API is easier to use, but we are making all D-Bus method
calls asynchronous to reduce UI jank. (crbug.com/127186)

+  // This method blocks until the call returns.
+  virtual bool IsMountedForUser(const std::string& username,
+                                bool* is_mounted,
+                                bool* is_ephemeral_mount) = 0;
+
   // Calls Unmount method and returns true when the call succeeds.
   // This method blocks until the call returns.
   virtual bool Unmount(bool* success) = 0;
 
   // Calls AsyncCheckKey method.  |callback| is called after the method call
   // succeeds.
   virtual void AsyncCheckKey(const std::string& username,
                              const std::string& key,
                              const AsyncMethodCallback& callback) = 0;
 
@@ skipping 97 matching lines @@
   // Create() should be used instead.
   CryptohomeClient();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(CryptohomeClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_CRYPTOHOME_CLIENT_H_