gdrive: Get JSON feeds parsing off the UI thread.

chrome/browser/chromeos/gdata/gdata_operations.cc

 // 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.
 
 #include "chrome/browser/chromeos/gdata/gdata_operations.h"
 
 #include "base/string_number_conversions.h"
 #include "base/stringprintf.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/gdata/gdata_wapi_parser.h"
@@ skipping 484 matching lines @@
   xml_writer.WriteElement("docs:authorizedApp", app_id_);
 
   xml_writer.EndElement();  // Ends "entry" element.
   xml_writer.StopWriting();
   upload_content->assign(xml_writer.GetWrittenString());
   DVLOG(1) << "AuthorizeAppOperation data: " << *upload_content_type << ", ["
            << *upload_content << "]";
   return true;
 }
 
-base::Value* AuthorizeAppsOperation::ParseResponse(const std::string& data) {
+bool AuthorizeAppsOperation::ParseResponse(GDataErrorCode fetch_error_code,
+                                           const std::string& data) {
   // Parse entry XML.
   XmlReader xml_reader;
   scoped_ptr<DocumentEntry> entry;
   if (xml_reader.Load(data)) {
     while (xml_reader.Read()) {
       if (xml_reader.NodeName() == DocumentEntry::GetEntryNodeName()) {
         entry.reset(DocumentEntry::CreateFromXml(&xml_reader));
         break;
       }
     }
   }
 
   // From the response, we create a list of the links returned, since those
   // are the only things we are interested in.
   scoped_ptr<base::ListValue> link_list(new ListValue);
   const ScopedVector<Link>& feed_links = entry->links();
   for (ScopedVector<Link>::const_iterator iter = feed_links.begin();
        iter != feed_links.end(); ++iter) {
     if ((*iter)->type() == Link::OPEN_WITH) {
       base::DictionaryValue* link = new DictionaryValue;
       link->SetString(std::string("href"), (*iter)->href().spec());
       link->SetString(std::string("mime_type"), (*iter)->mime_type());
       link->SetString(std::string("title"), (*iter)->title());
       link->SetString(std::string("app_id"), (*iter)->app_id());
       link_list->Append(link);
     }
   }
 
-  return link_list.release();
+  RunCallback(fetch_error_code, link_list.PassAs<base::Value>());
+  return true;
 }
 
 GURL AuthorizeAppsOperation::GetURL() const {
   return document_url_;
 }
 
 //======================= AddResourceToDirectoryOperation ======================
 
 AddResourceToDirectoryOperation::AddResourceToDirectoryOperation(
     GDataOperationRegistry* registry,
@@ skipping 324 matching lines @@
   return true;
 }
 
 void ResumeUploadOperation::OnURLFetchUploadProgress(
     const URLFetcher* source, int64 current, int64 total) {
   // Adjust the progress values according to the range currently uploaded.
   NotifyProgress(params_.start_range + current, params_.content_length);
 }
 
 }  // namespace gdata