Use GData WAPI's third party app authorization operation for Drive API v2.

chrome/browser/google_apis/drive_api_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_GOOGLE_APIS_DRIVE_API_SERVICE_H_
 #define CHROME_BROWSER_GOOGLE_APIS_DRIVE_API_SERVICE_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "chrome/browser/google_apis/auth_service_observer.h"
 #include "chrome/browser/google_apis/drive_api_url_generator.h"
 #include "chrome/browser/google_apis/drive_service_interface.h"
+#include "chrome/browser/google_apis/gdata_wapi_url_generator.h"
 
 class GURL;
 class Profile;
 
 namespace base {
 class FilePath;
 }
 
 namespace net {
 class URLRequestContextGetter;
 }  // namespace net
 
 namespace google_apis {
 class OperationRunner;
 
 // This class provides Drive operation calls using Drive V2 API.
 // Details of API call are abstracted in each operation class and this class
 // works as a thin wrapper for the API.
 class DriveAPIService : public DriveServiceInterface,
                         public AuthServiceObserver,
                         public OperationRegistryObserver {
  public:
   // Instance is usually created by DriveSystemServiceFactory and owned by
   // DriveFileSystem.
   //
   // |url_request_context_getter| is used to initialize URLFetcher.
   // |base_url| is used to generate URLs for communication with the drive API.
+  // |wapi_base_url| is used to generate URLs for communication with
+  // the GData WAPI server. Note that this should only be used for the hacky
+  // workaround for the operations which is not-yet supported on Drive API v2.
   // |custom_user_agent| will be used for the User-Agent header in HTTP
   // requests issues through the service if the value is not empty.
   DriveAPIService(
       net::URLRequestContextGetter* url_request_context_getter,
       const GURL& base_url,
+      const GURL& wapi_base_url,
       const std::string& custom_user_agent);
   virtual ~DriveAPIService();
 
   // DriveServiceInterface Overrides
   virtual void Initialize(Profile* profile) OVERRIDE;
   virtual void AddObserver(DriveServiceObserver* observer) OVERRIDE;
   virtual void RemoveObserver(DriveServiceObserver* observer) OVERRIDE;
   virtual bool CanStartOperation() const OVERRIDE;
   virtual void CancelAll() OVERRIDE;
   virtual bool CancelForFilePath(const base::FilePath& file_path) OVERRIDE;
@@ skipping 111 matching lines @@
 
   // DriveServiceObserver Overrides
   virtual void OnProgressUpdate(
       const OperationProgressStatusList& list) OVERRIDE;
 
   net::URLRequestContextGetter* url_request_context_getter_;
   Profile* profile_;
   scoped_ptr<OperationRunner> runner_;
   ObserverList<DriveServiceObserver> observers_;
   DriveApiUrlGenerator url_generator_;
+  GDataWapiUrlGenerator wapi_url_generator_;
   const std::string custom_user_agent_;
 
   DISALLOW_COPY_AND_ASSIGN(DriveAPIService);
 };
 
 }  // namespace google_apis
 
 #endif  // CHROME_BROWSER_GOOGLE_APIS_DRIVE_API_SERVICE_H_