app_list: Add web store search.

chrome/browser/extensions/webstore_data_fetcher.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_EXTENSIONS_WEBSTORE_DATA_FETCHER_H_
 #define CHROME_BROWSER_EXTENSIONS_WEBSTORE_DATA_FETCHER_H_
 
 #include <string>
 
+#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "googleurl/src/gurl.h"
 #include "net/url_request/url_fetcher_delegate.h"
 
 namespace base {
-class DictionaryValue;
+class Value;
 }
 
 namespace net {
 class URLFetcher;
 class URLRequestContextGetter;
 }
 
 namespace extensions {
 
 class WebstoreDataFetcherDelegate;
 
 // WebstoreDataFetcher fetches web store data and parses it into a
 // DictionaryValue.
 class WebstoreDataFetcher : public base::SupportsWeakPtr<WebstoreDataFetcher>,
                             public net::URLFetcherDelegate {
  public:
   WebstoreDataFetcher(WebstoreDataFetcherDelegate* delegate,
                       net::URLRequestContextGetter* request_context,
                       const GURL& referrer_url,
                       const std::string webstore_item_id);
   virtual ~WebstoreDataFetcher();
 
   void Start();
 
  private:
-  class SafeWebstoreResponseParser;
-
-  // Client callbacks for SafeWebstoreResponseParser when parsing is complete.
-  void OnWebstoreResponseParseSuccess(base::DictionaryValue* webstore_data);
-  void OnWebstoreResponseParseFailure(const std::string& error);
+  void OnJsonParseSuccess(scoped_ptr<base::Value> parsed_json);
+  void OnJsonParseFailure(const std::string& error);
 
   // net::URLFetcherDelegate overrides:
   virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
 
   WebstoreDataFetcherDelegate* delegate_;
   net::URLRequestContextGetter* request_context_;
   GURL referrer_url_;
   std::string id_;
 
   // For fetching webstore JSON data.
   scoped_ptr<net::URLFetcher> webstore_data_url_fetcher_;
 
   DISALLOW_COPY_AND_ASSIGN(WebstoreDataFetcher);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_WEBSTORE_DATA_FETCHER_H_