drive: Remove the remaining mentions of "feed"

chrome/browser/chromeos/drive/change_list_processor_unittest.cc

 // Copyright 2013 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/drive/change_list_processor.h"
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/message_loop.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "base/values.h"
@@ skipping 448 matching lines @@
   changed_dirs = ApplyChangeList(ParseChangeList(kTestJsonDelete));
   EXPECT_EQ(16770, GetChangestamp());
   EXPECT_FALSE(GetResourceEntry("drive/root/Directory 1/Added file.gdoc"));
 
   EXPECT_EQ(1U, changed_dirs.size());
   EXPECT_TRUE(changed_dirs.count(
       base::FilePath::FromUTF8Unsafe("drive/root/Directory 1")));
 }
 
 TEST_F(ChangeListProcessorTest, DeltaAddFileToNewButDeletedDirectory) {
-  // This feed contains the following updates:
+  // This file contains the following updates:
   // 1) A new PDF file is added to a new directory
   // 2) but the new directory is marked "deleted" (i.e. moved to Trash)
   // Hence, the PDF file should be just ignored.
   const char kTestJson[] =
       "chromeos/gdata/delta_file_added_in_new_but_deleted_directory.json";
 
   ChangeListProcessor::ResourceEntryMap entry_map;
   ChangeListProcessor::ConvertToMap(
       ParseChangeList(kTestJson), &entry_map, NULL);
 
@@ skipping 14 matching lines @@
       ApplyChangeList(ParseChangeList(kTestJson));
 
   EXPECT_EQ(16730, GetChangestamp());  // the value is written in kTestJson.
   EXPECT_FALSE(GetResourceEntry("drive/root/New Directory/new_pdf_file.pdf"));
 
   EXPECT_TRUE(changed_dirs.empty());
 }
 
 }  // namespace internal
 }  // namespace drive