Files.app: Provide detailed change information on onDirectoryChanged event

chrome/browser/chromeos/drive/file_system/create_directory_operation_unittest.cc

 // Copyright (c) 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/file_system/create_directory_operation.h"
 
 #include "chrome/browser/chromeos/drive/file_system/operation_test_base.h"
 #include "google_apis/drive/test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 31 matching lines @@
 
   FileError error = FILE_ERROR_FAILED;
   operation.CreateDirectory(
       kNewDirectory1,
       true, // is_exclusive
       false,  // is_recursive
       google_apis::test_util::CreateCopyResultCallback(&error));
   test_util::RunBlockingPoolTask();
   EXPECT_EQ(FILE_ERROR_OK, error);
   EXPECT_EQ(FILE_ERROR_OK, FindDirectory(kNewDirectory1));
-  EXPECT_EQ(1U, observer()->get_changed_paths().size());
-  EXPECT_EQ(1U,
-            observer()->get_changed_paths().count(kNewDirectory1.DirName()));
+  EXPECT_EQ(1U, observer()->get_changed_files().size());
+  EXPECT_EQ(
+      1U,
+      observer()->get_changed_files().CountDirectory(kNewDirectory1.DirName()));
 
   ResourceEntry entry;
   EXPECT_EQ(FILE_ERROR_OK, GetLocalResourceEntry(kNewDirectory1, &entry));
   EXPECT_EQ(ResourceEntry::DIRTY, entry.metadata_edit_state());
   EXPECT_TRUE(entry.file_info().is_directory());
   EXPECT_FALSE(base::Time::FromInternalValue(
       entry.file_info().last_modified()).is_null());
   EXPECT_FALSE(base::Time::FromInternalValue(
       entry.file_info().last_accessed()).is_null());
   EXPECT_EQ(1U, observer()->updated_local_ids().size());
@@ skipping 50 matching lines @@
       kExistingFile.AppendASCII("New Directory"),
       false, // is_exclusive
       true,  // is_recursive
       google_apis::test_util::CreateCopyResultCallback(&error));
   test_util::RunBlockingPoolTask();
   EXPECT_EQ(FILE_ERROR_NOT_A_DIRECTORY, error);
 }
 
 }  // namespace file_system
 }  // namespace drive