Prettify output from chrome.fileSystem.getDisplayPath for Windows profile directory

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 "base/file_util.h"
+#include "base/path_service.h"
 #include "chrome/browser/extensions/api/file_system/file_system_api.h"
 #include "chrome/browser/extensions/platform_app_browsertest_util.h"
 
 using extensions::FileSystemChooseFileFunction;
 
 class FileSystemApiTest : public PlatformAppBrowserTest {
  public:
   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
     PlatformAppBrowserTest::SetUpCommandLine(command_line);
     test_root_folder_ = test_data_dir_.AppendASCII("api_test")
@@ skipping 24 matching lines @@
 };
 
 IN_PROC_BROWSER_TEST_F(FileSystemApiTest, FileSystemApiGetDisplayPath) {
   FilePath test_file = test_root_folder_.AppendASCII("gold.txt");
   FileSystemChooseFileFunction::SkipPickerAndAlwaysSelectPathForTest(
       &test_file);
   ASSERT_TRUE(RunPlatformAppTest("api_test/file_system/get_display_path"))
       << message_;
 }
 
+#if defined(OS_WIN)
+IN_PROC_BROWSER_TEST_F(FileSystemApiTest, FileSystemApiGetDisplayPathPrettify) {
+  ASSERT_TRUE(PathService::OverrideAndCreateIfNeeded(base::DIR_PROFILE,
+      test_root_folder_, false));
+
+  FilePath test_file = test_root_folder_.AppendASCII("gold.txt");
+  FileSystemChooseFileFunction::SkipPickerAndAlwaysSelectPathForTest(
+      &test_file);
+  ASSERT_TRUE(RunPlatformAppTest(
+      "api_test/file_system/get_display_path_prettify")) << message_;
+}
+#endif
+
 IN_PROC_BROWSER_TEST_F(FileSystemApiTest, FileSystemApiOpenExistingFileTest) {
   FilePath test_file = TempFilePath("open_existing.txt", true);
   ASSERT_FALSE(test_file.empty());
   FileSystemChooseFileFunction::SkipPickerAndAlwaysSelectPathForTest(
       &test_file);
   ASSERT_TRUE(RunPlatformAppTest("api_test/file_system/open_existing"))
       << message_;
 }
 
 IN_PROC_BROWSER_TEST_F(FileSystemApiTest,
@@ skipping 107 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(FileSystemApiTest,
     FileSystemApiGetWritableWithWriteTest) {
   FilePath test_file = TempFilePath("writable.txt", true);
   ASSERT_FALSE(test_file.empty());
   FileSystemChooseFileFunction::SkipPickerAndAlwaysSelectPathForTest(
       &test_file);
   ASSERT_TRUE(RunPlatformAppTest(
       "api_test/file_system/get_writable_file_entry_with_write")) << message_;
 }
-