drive: Stop making multiple GetAppList() requests from DriveAppRegistry

chrome/browser/drive/fake_drive_service.h

 // Copyright (c) 2012 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_DRIVE_FAKE_DRIVE_SERVICE_H_
 #define CHROME_BROWSER_DRIVE_FAKE_DRIVE_SERVICE_H_
 
 #include "base/files/file_path.h"
 #include "base/values.h"
 #include "chrome/browser/drive/drive_service_interface.h"
@@ skipping 50 matching lines @@
   // Returns the number of times the resource list is successfully loaded by
   // GetResourceListInDirectory().
   int directory_load_count() const { return directory_load_count_; }
 
   // Returns the number of times the about resource is successfully loaded
   // by GetAboutResource().
   int about_resource_load_count() const {
     return about_resource_load_count_;
   }
 
+  // Returns the number of times the app list is successfully loaded by
+  // GetAppList().
+  int app_list_load_count() const { return app_list_load_count_; }
+
   // Returns the file path whose request is cancelled just before this method
   // invocation.
   const base::FilePath& last_cancelled_file() const {
     return last_cancelled_file_;
   }
 
   // Returns the (fake) URL for the link.
   static GURL GetFakeLinkUrl(const std::string& resource_id);
 
   // DriveServiceInterface Overrides
@@ skipping 184 matching lines @@
   std::map<GURL, UploadSession> upload_sessions_;
   int64 largest_changestamp_;
   int64 published_date_seq_;
   int64 next_upload_sequence_number_;
   int default_max_results_;
   int resource_id_count_;
   int resource_list_load_count_;
   int change_list_load_count_;
   int directory_load_count_;
   int about_resource_load_count_;
+  int app_list_load_count_;
   bool offline_;
   base::FilePath last_cancelled_file_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeDriveService);
 };
 
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_DRIVE_FAKE_DRIVE_SERVICE_H_