Add full support for filesystem URLs.

chrome/browser/web_applications/web_app.cc

 // Copyright (c) 2011 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/web_applications/web_app.h"
 
 #if defined(OS_WIN)
 #include <shlobj.h>
 #endif  // defined(OS_WIN)
 
@@ skipping 418 matching lines @@
                  shortcut_info));
 }
 
 void SetDisableShortcutCreationForTests(bool disable) {
   disable_shortcut_creation_for_tests = disable;
 }
 
 bool IsValidUrl(const GURL& url) {
   static const char* const kValidUrlSchemes[] = {
       chrome::kFileScheme,
+      chrome::kFileSystemScheme,
       chrome::kFtpScheme,
       chrome::kHttpScheme,
       chrome::kHttpsScheme,
       chrome::kExtensionScheme,
   };
 
   for (size_t i = 0; i < arraysize(kValidUrlSchemes); ++i) {
     if (url.SchemeIs(kValidUrlSchemes[i]))
       return true;
   }
@@ skipping 24 matching lines @@
 
 #if defined(TOOLKIT_USES_GTK)
 std::string GetWMClassFromAppName(std::string app_name) {
   file_util::ReplaceIllegalCharactersInPath(&app_name, '_');
   TrimString(app_name, "_", &app_name);
   return app_name;
 }
 #endif
 
 }  // namespace web_app