gdata: Introduce GDataWapiFeedLoader class

chrome/browser/chromeos/gdata/gdata_file_system_unittest.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 <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
@@ skipping 310 matching lines @@
               GDATA_FILE_OK)
         << "Failed adding "
         << directory_path.DirName().value();
   }
 
   // Updates the content of directory under |directory_path| with parsed feed
   // |value|.
   bool UpdateContent(const std::vector<DocumentFeed*>& list,
                      int largest_changestamp) {
     GURL unused;
-    return file_system_->UpdateFromFeed(
+    return file_system_->UpdateFromFeedForTesting(
         list,
         largest_changestamp,
         root_feed_changestamp_++) == GDATA_FILE_OK;
   }
 
   bool RemoveEntry(const FilePath& file_path) {
     return file_system_->RemoveEntryFromFileSystem(file_path) ==
         GDATA_FILE_OK;
   }
 
@@ skipping 2275 matching lines @@
 
   // Try to close the same file twice.
   file_system_->CloseFile(kFileInRoot, close_file_callback);
   message_loop_.Run();
 
   // It must fail.
   EXPECT_EQ(GDATA_FILE_ERROR_NOT_FOUND, callback_helper_->last_error_);
 }
 
 }   // namespace gdata