Add caching for apps list search results.

chrome/browser/ui/app_list/search/people/people_provider.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_UI_APP_LIST_SEARCH_PEOPLE_PEOPLE_PROVIDER_H_
 #define CHROME_BROWSER_UI_APP_LIST_SEARCH_PEOPLE_PEOPLE_PROVIDER_H_
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 46 matching lines @@
   // Invalidate our existing token so a new one can be fetched.
   void InvalidateToken();
 
   // Get the full people search query URL. This URL includes the OAuth refresh
   // token for authenticating the current user.
   GURL GetQueryUrl(const std::string& query);
 
   // Start the search request with |query_|.
   void StartQuery();
 
+  // Callback for people search results being fetched.
   void OnPeopleSearchFetched(scoped_ptr<base::DictionaryValue> json);
   void ProcessPeopleSearchResults(const base::DictionaryValue* json);
   scoped_ptr<ChromeSearchResult> CreateResult(
       const base::DictionaryValue& dict);
 
   // Setup the various variables that we override for testing.
   void SetupForTest(const base::Closure& people_search_fetched_callback,
                     const GURL& people_search_url);
 
   scoped_ptr<JSONResponseFetcher> people_search_;
   base::Closure people_search_fetched_callback_;
 
   std::string access_token_;
   scoped_ptr<OAuth2TokenService::Request> access_token_request_;
   OAuth2TokenService::ScopeSet oauth2_scope_;
 
   // The current query.
   std::string query_;
   GURL people_search_url_;
 
   bool skip_request_token_for_test_;
 
   DISALLOW_COPY_AND_ASSIGN(PeopleProvider);
 };
 
 }  // namespace app_list
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_SEARCH_PEOPLE_PEOPLE_PROVIDER_H_