Move chrome.fileSystem implementation to //extensions

chrome/browser/extensions/api/file_system/file_system_apitest.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 "apps/saved_files_service.h"
 #include "base/files/file_util.h"
 #include "base/macros.h"
 #include "base/path_service.h"
 #include "base/scoped_observer.h"
 #include "base/threading/thread_restrictions.h"
 #include "build/build_config.h"
 #include "chrome/browser/apps/app_browsertest_util.h"
-#include "chrome/browser/extensions/api/file_system/file_system_api.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_paths.h"
+#include "extensions/browser/api/file_system/file_system_api.h"
 #include "extensions/browser/api/file_system/saved_file_entry.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_registry_observer.h"
 
+// TODO(michaelpg): Port these tests to app_shell: crbug.com/505926.
+
 namespace content {
 class BrowserContext;
 }
 
 namespace extensions {
 
 namespace {
 
 class AppLoadObserver : public ExtensionRegistryObserver {
  public:
@@ skipping 643 matching lines @@
 #if !defined(OS_CHROMEOS)
 IN_PROC_BROWSER_TEST_F(FileSystemApiTest, RequestFileSystem_NotChromeOS) {
   ASSERT_TRUE(RunPlatformAppTestWithFlags(
       "api_test/file_system/request_file_system_not_chromeos",
       kFlagIgnoreManifestWarnings))
       << message_;
 }
 #endif
 
 }  // namespace extensions