Actual cancelation of registration when cancel buttons pressed

chrome/browser/local_discovery/privet_http_impl.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_IMPL_H_
 #define CHROME_BROWSER_LOCAL_DISCOVERY_PRIVET_HTTP_IMPL_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 48 matching lines @@
   virtual void OnParsedJson(PrivetURLFetcher* fetcher,
                             const base::DictionaryValue* value,
                             bool has_error) OVERRIDE;
 
   virtual void OnPrivetInfoDone(PrivetInfoOperation* operation,
                                 int http_code,
                                 const base::DictionaryValue* value) OVERRIDE;
 
   virtual PrivetHTTPClient* GetHTTPClient() OVERRIDE;
  private:
+  class Cancelation : public PrivetURLFetcher::Delegate {
+   public:
+    Cancelation(PrivetHTTPClientImpl* privet_client,
+                const std::string& user);
+    virtual ~Cancelation();
+
+    virtual void OnError(PrivetURLFetcher* fetcher,
+                         PrivetURLFetcher::ErrorType error) OVERRIDE;
+
+    virtual void OnParsedJson(PrivetURLFetcher* fetcher,
+                              const base::DictionaryValue* value,
+                              bool has_error) OVERRIDE;
+
+    void Cleanup();
+
+   private:
+    scoped_ptr<PrivetURLFetcher> url_fetcher_;
+  };
+
   // Arguments is JSON value from request.
   typedef base::Callback<void(const base::DictionaryValue&)>
       ResponseHandler;
 
   void StartResponse(const base::DictionaryValue& value);
   void GetClaimTokenResponse(const base::DictionaryValue& value);
   void CompleteResponse(const base::DictionaryValue& value);
 
   void StartInfoOperation();
 
   void SendRequest(const std::string& action);
 
   bool PrivetErrorTransient(const std::string& error);
 
+  static GURL GetURLForActionAndUser(
+      PrivetHTTPClientImpl* privet_client,
+      const std::string& action,
+      const std::string& user);
+
   std::string user_;
   std::string current_action_;
   scoped_ptr<PrivetURLFetcher> url_fetcher_;
   PrivetRegisterOperation::Delegate* delegate_;
   PrivetHTTPClientImpl* privet_client_;
   ResponseHandler next_response_handler_;
   // Required to ensure destroying completed register operations doesn't cause
   // extraneous cancelations.
   bool ongoing_;
   scoped_ptr<PrivetInfoOperation> info_operation_;
@@ skipping 27 matching lines @@
 
  private:
   std::string name_;
   PrivetURLFetcherFactory fetcher_factory_;
   net::HostPortPair host_port_;
   scoped_ptr<base::DictionaryValue> cached_info_;
 };
 
 }  // namespace local_discovery
 #endif  // CHROME_BROWSER_LOCAL_DISCOVERY_PRIVET_HTTP_IMPL_H_