Store/Retrieve CrOS user policy in session_manager.

chrome/browser/policy/user_policy_identity_strategy.h

Index: chrome/browser/policy/user_policy_identity_strategy.h
diff --git a/chrome/browser/policy/user_policy_identity_strategy.h b/chrome/browser/policy/user_policy_identity_strategy.h
index c90011efd3a931165ee6c594a8e5f56771c59b32..12560ae37357218a02e1a65c87c080036f88a1bd 100644
--- a/chrome/browser/policy/user_policy_identity_strategy.h
+++ b/chrome/browser/policy/user_policy_identity_strategy.h
@@ -33,9 +33,6 @@ class UserPolicyIdentityStrategy : public CloudPolicyIdentityStrategy,
                              const FilePath& token_cache_file);
   virtual ~UserPolicyIdentityStrategy();
 
-  // Start loading the token cache.
-  void LoadTokenCache();
-
   // CloudPolicyIdentityStrategy implementation:
   virtual std::string GetDeviceToken() OVERRIDE;
   virtual std::string GetDeviceID() OVERRIDE;
@@ -46,6 +43,7 @@ class UserPolicyIdentityStrategy : public CloudPolicyIdentityStrategy,
   virtual bool GetCredentials(std::string* username,
                               std::string* auth_token) OVERRIDE;
   virtual void OnDeviceTokenAvailable(const std::string& token) OVERRIDE;
+  virtual void LoadTokenCache() OVERRIDE;
 
  private:
   // Checks whether a new token should be fetched and if so, sends out a