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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_EXTENSIONS_WEBSTORE_DATA_FETCHER_H_
      6 #define CHROME_BROWSER_EXTENSIONS_WEBSTORE_DATA_FETCHER_H_
      7 
      8 #include <string>
      9 
     10 #include "base/memory/scoped_ptr.h"
     11 #include "base/memory/weak_ptr.h"
     12 #include "net/url_request/url_fetcher_delegate.h"
     13 #include "url/gurl.h"
     14 
     15 namespace base {
     16 class Value;
     17 }
     18 
     19 namespace net {
     20 class URLFetcher;
     21 class URLRequestContextGetter;
     22 }
     23 
     24 namespace extensions {
     25 
     26 class WebstoreDataFetcherDelegate;
     27 
     28 // WebstoreDataFetcher fetches web store data and parses it into a
     29 // DictionaryValue.
     30 class WebstoreDataFetcher : public base::SupportsWeakPtr<WebstoreDataFetcher>,
     31                             public net::URLFetcherDelegate {
     32  public:
     33   WebstoreDataFetcher(WebstoreDataFetcherDelegate* delegate,
     34                       net::URLRequestContextGetter* request_context,
     35                       const GURL& referrer_url,
     36                       const std::string webstore_item_id);
     37   virtual ~WebstoreDataFetcher();
     38 
     39   void Start();
     40 
     41  private:
     42   void OnJsonParseSuccess(scoped_ptr<base::Value> parsed_json);
     43   void OnJsonParseFailure(const std::string& error);
     44 
     45   // net::URLFetcherDelegate overrides:
     46   virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
     47 
     48   WebstoreDataFetcherDelegate* delegate_;
     49   net::URLRequestContextGetter* request_context_;
     50   GURL referrer_url_;
     51   std::string id_;
     52 
     53   // For fetching webstore JSON data.
     54   scoped_ptr<net::URLFetcher> webstore_data_url_fetcher_;
     55 
     56   DISALLOW_COPY_AND_ASSIGN(WebstoreDataFetcher);
     57 };
     58 
     59 }  // namespace extensions
     60 
     61 #endif  // CHROME_BROWSER_EXTENSIONS_WEBSTORE_DATA_FETCHER_H_
     62