Move browser-side File API unittests next to the files they cover.

content/browser/fileapi/mock_file_change_observer.cc

-// Copyright 2014 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 "content/browser/fileapi/mock_file_change_observer.h"
-
-#include "base/threading/thread_task_runner_handle.h"
-
-namespace storage {
-
-MockFileChangeObserver::MockFileChangeObserver()
-    : create_file_count_(0),
-      create_file_from_count_(0),
-      remove_file_count_(0),
-      modify_file_count_(0),
-      create_directory_count_(0),
-      remove_directory_count_(0) {}
-
-MockFileChangeObserver::~MockFileChangeObserver() {}
-
-// static
-ChangeObserverList MockFileChangeObserver::CreateList(
-    MockFileChangeObserver* observer) {
-  ChangeObserverList list;
-  return list.AddObserver(observer, base::ThreadTaskRunnerHandle::Get().get());
-}
-
-void MockFileChangeObserver::OnCreateFile(const FileSystemURL& url) {
-  create_file_count_++;
-}
-
-void MockFileChangeObserver::OnCreateFileFrom(const FileSystemURL& url,
-                                              const FileSystemURL& src) {
-  create_file_from_count_++;
-}
-
-void MockFileChangeObserver::OnRemoveFile(const FileSystemURL& url) {
-  remove_file_count_++;
-}
-
-void MockFileChangeObserver::OnModifyFile(const FileSystemURL& url) {
-  modify_file_count_++;
-}
-
-void MockFileChangeObserver::OnCreateDirectory(const FileSystemURL& url) {
-  create_directory_count_++;
-}
-
-void MockFileChangeObserver::OnRemoveDirectory(const FileSystemURL& url) {
-  remove_directory_count_++;
-}
-
-}  // namespace storage