gdrive: Get JSON feeds parsing off the UI thread.

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_
 
 #include <string>
 #include <vector>
 
@@ skipping 82 matching lines @@
       const DownloadActionCallback& download_action_callback,
       const GetDownloadDataCallback& get_download_data_callback,
       const GURL& document_url,
       const FilePath& virtual_path,
       const FilePath& output_file_path);
   virtual ~DownloadFileOperation();
 
  protected:
   // Overridden from UrlFetchOperationBase.
   virtual GURL GetURL() const OVERRIDE;
-  virtual bool ProcessURLFetchResults(const net::URLFetcher* source) OVERRIDE;
+  virtual void ProcessURLFetchResults(
+      const net::URLFetcher* source,
+      const ProcessURLFetchResultsCallBack& result_callback) OVERRIDE;
   virtual void RunCallbackOnPrematureFailure(GDataErrorCode code) OVERRIDE;
 
   // Overridden from net::URLFetcherDelegate.
   virtual void OnURLFetchDownloadProgress(const net::URLFetcher* source,
                                           int64 current, int64 total) OVERRIDE;
   virtual bool ShouldSendDownloadData() OVERRIDE;
   virtual void OnURLFetchDownloadData(
       const net::URLFetcher* source,
       scoped_ptr<std::string> download_data) OVERRIDE;
 
@@ skipping 128 matching lines @@
   // Overridden from EntryActionOperation.
   virtual net::URLFetcher::RequestType GetRequestType() const OVERRIDE;
 
   // Overridden from UrlFetchOperationBase.
   virtual bool GetContentData(std::string* upload_content_type,
                               std::string* upload_content) OVERRIDE;
   virtual std::vector<std::string> GetExtraRequestHeaders() const OVERRIDE;
 
   // Overridden from GetDataOperation.
   virtual GURL GetURL() const OVERRIDE;
-  virtual bool ProcessURLFetchResults(const net::URLFetcher* source) OVERRIDE;
+  virtual void ProcessURLFetchResults(
+      const net::URLFetcher* source,
+      const ProcessURLFetchResultsCallBack& result_callback) OVERRIDE;
 
   // Must override GetDataOperation's ParseResponse because the response is XML
   // not JSON.
-  virtual base::Value* ParseResponse(const std::string& data) OVERRIDE;
+  virtual void ParseResponse(
+      GDataErrorCode fetch_error_code,
+      const std::string& data,
+      const ProcessURLFetchResultsCallBack& result_callback) OVERRIDE;
  private:
   std::string app_id_;
   GURL document_url_;
 
   DISALLOW_COPY_AND_ASSIGN(AuthorizeAppsOperation);
 };
 
 //======================= AddResourceToDirectoryOperation ======================
 
 // This class performs the operation for adding a document/file/directory
@@ skipping 54 matching lines @@
  public:
   InitiateUploadOperation(GDataOperationRegistry* registry,
                           Profile* profile,
                           const InitiateUploadCallback& callback,
                           const InitiateUploadParams& params);
   virtual ~InitiateUploadOperation();
 
  protected:
   // Overridden from UrlFetchOperationBase.
   virtual GURL GetURL() const OVERRIDE;
-  virtual bool ProcessURLFetchResults(const net::URLFetcher* source) OVERRIDE;
+  virtual void ProcessURLFetchResults(
+      const net::URLFetcher* source,
+      const ProcessURLFetchResultsCallBack& result_callback) OVERRIDE;
   virtual void NotifySuccessToOperationRegistry() OVERRIDE;
   virtual void RunCallbackOnPrematureFailure(GDataErrorCode code) OVERRIDE;
 
   // Overridden from UrlFetchOperationBase.
   virtual net::URLFetcher::RequestType GetRequestType() const OVERRIDE;
   virtual std::vector<std::string> GetExtraRequestHeaders() const OVERRIDE;
   virtual bool GetContentData(std::string* upload_content_type,
                               std::string* upload_content) OVERRIDE;
 
  private:
@@ skipping 11 matching lines @@
  public:
   ResumeUploadOperation(GDataOperationRegistry* registry,
                         Profile* profile,
                         const ResumeUploadCallback& callback,
                         const ResumeUploadParams& params);
   virtual ~ResumeUploadOperation();
 
  protected:
   // Overridden from UrlFetchOperationBase.
   virtual GURL GetURL() const OVERRIDE;
-  virtual bool ProcessURLFetchResults(const net::URLFetcher* source) OVERRIDE;
+  virtual void ProcessURLFetchResults(
+      const net::URLFetcher* source,
+      const ProcessURLFetchResultsCallBack& result_callback) OVERRIDE;
+
   virtual void NotifyStartToOperationRegistry() OVERRIDE;
   virtual void NotifySuccessToOperationRegistry() OVERRIDE;
   virtual void RunCallbackOnPrematureFailure(GDataErrorCode code) OVERRIDE;
 
   // Overridden from UrlFetchOperationBase.
   virtual net::URLFetcher::RequestType GetRequestType() const OVERRIDE;
   virtual std::vector<std::string> GetExtraRequestHeaders() const OVERRIDE;
   virtual bool GetContentData(std::string* upload_content_type,
                               std::string* upload_content) OVERRIDE;
 
   // Overridden from content::UrlFetcherDelegate
   virtual void OnURLFetchUploadProgress(const net::URLFetcher* source,
                                         int64 current, int64 total) OVERRIDE;
 
  private:
   ResumeUploadCallback callback_;
   ResumeUploadParams params_;
   bool last_chunk_completed_;
 
   DISALLOW_COPY_AND_ASSIGN(ResumeUploadOperation);
 };
 
 }  // namespace gdata
 
 #endif  // CHROME_BROWSER_CHROMEOS_GDATA_GDATA_OPERATIONS_H_