Use persistent map of privet tokens for PrivetURLFetcher

chrome/browser/local_discovery/privet_http.h

 // Copyright 2013 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_LOCAL_DISCOVERY_PRIVET_HTTP_H_
 #define CHROME_BROWSER_LOCAL_DISCOVERY_PRIVET_HTTP_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 119 matching lines @@
   virtual void SetPWGRasterConverterForTesting(
       scoped_ptr<PWGRasterConverter> pwg_raster_converter) = 0;
 
   virtual PrivetHTTPClient* GetHTTPClient() = 0;
 };
 
 // Privet HTTP client. Must not outlive the operations it creates.
 class PrivetHTTPClient {
  public:
   virtual ~PrivetHTTPClient() {}
-  virtual const base::DictionaryValue* GetCachedInfo() const = 0;
 
   virtual scoped_ptr<PrivetRegisterOperation> CreateRegisterOperation(
       const std::string& user,
       PrivetRegisterOperation::Delegate* delegate) = 0;
   virtual scoped_ptr<PrivetJSONOperation> CreateInfoOperation(
       const PrivetJSONOperation::ResultCallback& callback) = 0;
   virtual scoped_ptr<PrivetJSONOperation> CreateCapabilitiesOperation(
       const PrivetJSONOperation::ResultCallback& callback) = 0;
   virtual scoped_ptr<PrivetLocalPrintOperation> CreateLocalPrintOperation(
       PrivetLocalPrintOperation::Delegate* delegate) = 0;
   virtual scoped_ptr<PrivetJSONOperation> CreateStorageListOperation(
       const std::string& path,
       const PrivetJSONOperation::ResultCallback& callback) = 0;
 
   // A name for the HTTP client, e.g. the device name for the privet device.
   virtual const std::string& GetName() = 0;
 };
 
 }  // namespace local_discovery
 #endif  // CHROME_BROWSER_LOCAL_DISCOVERY_PRIVET_HTTP_H_