Revert 288017 "Parse Drive API responses all at once in the bloc..."

trunk/src/google_apis/drive/gdata_wapi_requests.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 "google_apis/drive/gdata_wapi_requests.h"
 
-#include "base/location.h"
-#include "base/sequenced_task_runner.h"
-#include "base/task_runner_util.h"
-#include "base/values.h"
-#include "google_apis/drive/gdata_wapi_parser.h"
 #include "google_apis/drive/gdata_wapi_url_generator.h"
 
 namespace google_apis {
 
-namespace {
-
-scoped_ptr<ResourceEntry> ParseResourceEntry(const std::string& json) {
-  scoped_ptr<base::Value> value = ParseJson(json);
-  return value ? ResourceEntry::ExtractAndParse(*value) :
-      scoped_ptr<ResourceEntry>();
-}
-
-}  // namespace
+//============================ GetResourceEntryRequest =======================
 
 GetResourceEntryRequest::GetResourceEntryRequest(
     RequestSender* sender,
     const GDataWapiUrlGenerator& url_generator,
     const std::string& resource_id,
     const GURL& embed_origin,
-    const GetResourceEntryCallback& callback)
-    : UrlFetchRequestBase(sender),
+    const GetDataCallback& callback)
+    : GetDataRequest(sender, callback),
       url_generator_(url_generator),
       resource_id_(resource_id),
-      embed_origin_(embed_origin),
-      callback_(callback),
-      weak_ptr_factory_(this) {
+      embed_origin_(embed_origin) {
   DCHECK(!callback.is_null());
 }
 
 GetResourceEntryRequest::~GetResourceEntryRequest() {}
 
 GURL GetResourceEntryRequest::GetURL() const {
   return url_generator_.GenerateEditUrlWithEmbedOrigin(
       resource_id_, embed_origin_);
 }
 
-void GetResourceEntryRequest::ProcessURLFetchResults(
-    const net::URLFetcher* source) {
-  GDataErrorCode error = GetErrorCode();
-  switch (error) {
-    case HTTP_SUCCESS:
-    case HTTP_CREATED:
-      base::PostTaskAndReplyWithResult(
-          blocking_task_runner(),
-          FROM_HERE,
-          base::Bind(&ParseResourceEntry, response_writer()->data()),
-          base::Bind(&GetResourceEntryRequest::OnDataParsed,
-                     weak_ptr_factory_.GetWeakPtr(), error));
-      break;
-    default:
-      RunCallbackOnPrematureFailure(error);
-      OnProcessURLFetchResultsComplete();
-      break;
-  }
-}
-
-void GetResourceEntryRequest::RunCallbackOnPrematureFailure(
-    GDataErrorCode error) {
-  callback_.Run(error, scoped_ptr<ResourceEntry>());
-}
-
-void GetResourceEntryRequest::OnDataParsed(GDataErrorCode error,
-                                           scoped_ptr<ResourceEntry> entry) {
-  callback_.Run(entry ? error : GDATA_PARSE_ERROR, entry.Pass());
-  OnProcessURLFetchResultsComplete();
-}
-
 }  // namespace google_apis