Fix dependency: make file_system_util not depend on FileSystemURL

webkit/fileapi/file_system_util.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 "webkit/fileapi/file_system_util.h"
 
 #include "build/build_config.h"
 
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/string_util.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "googleurl/src/gurl.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebCString.h"
 #include "third_party/WebKit/Source/Platform/chromium/public/WebString.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
 #include "webkit/base/origin_url_conversions.h"
-#include "webkit/fileapi/file_system_url.h"
 
 namespace fileapi {
 
 const char kPersistentDir[] = "/persistent";
 const char kTemporaryDir[] = "/temporary";
 const char kIsolatedDir[] = "/isolated";
 const char kExternalDir[] = "/external";
 const char kTestDir[] = "/test";
 
 const base::FilePath::CharType VirtualPath::kRoot[] = FILE_PATH_LITERAL("/");
@@ skipping 322 matching lines @@
   root.append("/");
   if (!optional_root_name.empty()) {
     if (base::FilePath::FromUTF8Unsafe(optional_root_name).ReferencesParent())
       return std::string();
     root.append(optional_root_name);
     root.append("/");
   }
   return root;
 }
 
-bool AreSameFileSystem(const FileSystemURL& url1, const FileSystemURL& url2) {
-  return url1.origin() == url2.origin() && url1.type() == url2.type();
-}
-
 }  // namespace fileapi