arc: Add URL converter functions

chrome/browser/chromeos/fileapi/external_file_url_util_unittest.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 "chrome/browser/chromeos/fileapi/external_file_url_util.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "chrome/test/base/testing_profile_manager.h"
 #include "components/drive/file_system_core_util.h"
+#include "content/public/common/url_constants.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "storage/browser/fileapi/file_system_url.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace chromeos {
 
 namespace {
 
 // Sets up ProfileManager for testing and marks the current thread as UI by
 // TestBrowserThreadBundle. We need the thread since Profile objects must be
@@ skipping 50 matching lines @@
   base::string16 utf16_string;
   utf16_string.push_back(0x307b);  // HIRAGANA_LETTER_HO
   utf16_string.push_back(0x3052);  // HIRAGANA_LETTER_GE
   url = CreateExpectedURL(
       base::FilePath::FromUTF8Unsafe(base::UTF16ToUTF8(utf16_string) + ".txt"));
   EXPECT_EQ(url.virtual_path().AsUTF8Unsafe(),
             ExternalFileURLToVirtualPath(FileSystemURLToExternalFileURL(url))
                 .AsUTF8Unsafe());
 }
 
+TEST_F(ExternalFileURLUtilTest, VirtualPathToExternalFileURL) {
+  base::FilePath virtual_path(FILE_PATH_LITERAL("foo/bar012.txt"));
+  GURL result = VirtualPathToExternalFileURL(virtual_path);
+  EXPECT_TRUE(result.is_valid());
+  EXPECT_EQ(content::kExternalFileScheme, result.scheme());
+  EXPECT_EQ(virtual_path.value(), ExternalFileURLToVirtualPath(result).value());
+}
+
 }  // namespace chromeos