Wired GDataFileSystem::GetFile() method with internal cache.

chrome/browser/chromeos/gdata/gdata_operations.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_CHROMEOS_GDATA_GDATA_OPERATIONS_H_
 #define CHROME_BROWSER_CHROMEOS_GDATA_GDATA_OPERATIONS_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 120 matching lines @@
   virtual void OnAuthFailed(GDataErrorCode code) OVERRIDE;
 
   std::string GetResponseHeadersAsString(
       const content::URLFetcher* url_fetcher);
 
   Profile* profile_;
   ReAuthenticateCallback re_authenticate_callback_;
   scoped_refptr<base::MessageLoopProxy> relay_proxy_;
   int re_authenticate_count_;
   bool save_temp_file_;
+  FilePath output_file_path_;
   scoped_ptr<content::URLFetcher> url_fetcher_;
 };
 
 //============================ EntryActionOperation ============================
 
 // This class performs a simple action over a given entry (document/file).
 // It is meant to be used for operations that return no JSON blobs.
 class EntryActionOperation : public UrlFetchOperationBase {
  public:
   EntryActionOperation(GDataOperationRegistry* registry,
@@ skipping 86 matching lines @@
 
 //============================ DownloadFileOperation ===========================
 
 // This class performs the operation for downloading of a given document/file.
 class DownloadFileOperation : public UrlFetchOperationBase {
  public:
   DownloadFileOperation(GDataOperationRegistry* registry,
                         Profile* profile,
                         const DownloadActionCallback& callback,
                         const GURL& document_url,
-                        const FilePath& virtual_path);
+                        const FilePath& virtual_path,
+                        const FilePath& output_file_path);
   virtual ~DownloadFileOperation();
 
  protected:
   // Overridden from UrlFetchOperationBase.
   virtual GURL GetURL() const OVERRIDE;
   virtual bool ProcessURLFetchResults(const content::URLFetcher* source)
       OVERRIDE;
   virtual void RunCallbackOnPrematureFailure(GDataErrorCode code) OVERRIDE;
 
   // Overridden from content::URLFetcherDelegate.
@@ skipping 231 matching lines @@
  private:
   ResumeUploadCallback callback_;
   ResumeUploadParams params_;
 
   DISALLOW_COPY_AND_ASSIGN(ResumeUploadOperation);
 };
 
 }  // namespace gdata
 
 #endif  // CHROME_BROWSER_CHROMEOS_GDATA_GDATA_OPERATIONS_H_