cros: Create cryptohome keys for Easy sign-in.

chrome/browser/chromeos/login/session/user_session_manager.h

Index: chrome/browser/chromeos/login/session/user_session_manager.h
diff --git a/chrome/browser/chromeos/login/session/user_session_manager.h b/chrome/browser/chromeos/login/session/user_session_manager.h
index a560184fb637ee9470f16adc22f7420f10f81743..06354a5b651c9da972d446b489e7d528e3f86810 100644
--- a/chrome/browser/chromeos/login/session/user_session_manager.h
+++ b/chrome/browser/chromeos/login/session/user_session_manager.h
@@ -8,6 +8,7 @@
 #include <string>
 
 #include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
@@ -33,6 +34,8 @@ class User;
 
 namespace chromeos {
 
+class EasyUnlockKeyManager;
+
 class UserSessionManagerDelegate {
  public:
   // Called after profile is loaded and prepared for the session.
@@ -152,6 +155,11 @@ class UserSessionManager
   scoped_refptr<input_method::InputMethodManager::State> GetDefaultIMEState(
       Profile* profile);
 
+  // Note this could return NULL if not enabled.
+  EasyUnlockKeyManager* easy_unlock_key_manager() {
+    return easy_unlock_key_manager_.get();
+  }
+
  private:
   friend struct DefaultSingletonTraits<UserSessionManager>;
 
@@ -235,6 +243,9 @@ class UserSessionManager
   // Notifies observers that user pending sessions restore has finished.
   void NotifyPendingUserSessionsRestoreFinished();
 
+  // Update Easy unlock cryptohome keys using the pairing data in user prefs.
+  void UpdateEasyUnlockKeys(Profile* user_profile);
+
   UserSessionManagerDelegate* delegate_;
 
   // Authentication/user context.
@@ -281,6 +292,9 @@ class UserSessionManager
   std::map<Profile*, scoped_refptr<input_method::InputMethodManager::State> >
       default_ime_states_;
 
+  // Manages Easy unlock cryptohome keys.
+  scoped_ptr<EasyUnlockKeyManager> easy_unlock_key_manager_;
+
   DISALLOW_COPY_AND_ASSIGN(UserSessionManager);
 };