UserPolicyCache only becomes ready after policy has been fetched.

chrome/browser/net/gaia/gaia_oauth_fetcher.h

 // Copyright (c) 2011 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_NET_GAIA_GAIA_OAUTH_FETCHER_H_
 #define CHROME_BROWSER_NET_GAIA_GAIA_OAUTH_FETCHER_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 122 matching lines @@
 
   // Called when a cookie, e. g. oauth_token, changes
   virtual void OnBrowserClosing(Browser* profile,
                                 bool detail);
 
   // Implementation of content::URLFetcherDelegate
   virtual void OnURLFetchComplete(const content::URLFetcher* source) OVERRIDE;
 
   // StartGetOAuthToken (or other Start* routine) been called, but results
   // are not back yet.
-  virtual bool HasPendingFetch();
+  virtual bool HasPendingFetch() const;
 
   // Stop any URL fetches in progress.
   virtual void CancelRequest();
 
  private:
   // Process the results of a GetOAuthToken fetch via UI.
   virtual void OnGetOAuthTokenFetched(const std::string& token);
 
   // Process the results of a GetOAuthToken fetch for non-UI driven path.
   virtual void OnGetOAuthTokenUrlFetched(const net::ResponseCookies& cookies,
@@ skipping 99 matching lines @@
   std::string request_body_;
   std::string request_headers_;
   std::string service_scope_;
   bool fetch_pending_;
   AutoFetchLimit auto_fetch_limit_;
 
   DISALLOW_COPY_AND_ASSIGN(GaiaOAuthFetcher);
 };
 
 #endif  // CHROME_BROWSER_NET_GAIA_GAIA_OAUTH_FETCHER_H_