Merge web_request_api_utils back into web_request_api_helpers.

extensions/browser/api/web_request/web_request_api_utils.h

-// Copyright (c) 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.
-
-// Helper functions used for the WebRequest API.
-
-#ifndef EXTENSIONS_BROWSER_API_WEB_REQUEST_WEB_REQUEST_API_UTILS_H_
-#define EXTENSIONS_BROWSER_API_WEB_REQUEST_WEB_REQUEST_API_UTILS_H_
-
-#include <string>
-
-#include "content/public/common/resource_type.h"
-
-using content::ResourceType;
-
-namespace extension_web_request_api_utils {
-
-// Returns whether |type| is a ResourceType that is handled by the web request
-// API.
-bool IsRelevantResourceType(content::ResourceType type);
-
-// Returns a string representation of |type| or |other| if |type| is not handled
-// by the web request API.
-const char* ResourceTypeToString(content::ResourceType type);
-
-// Stores a |content::ResourceType| representation in |type| if |type_str| is
-// a resource type handled by the web request API. Returns true in case of
-// success.
-bool ParseResourceType(const std::string& type_str,
-                       content::ResourceType* type);
-
-}  // namespace extension_web_request_api_utils
-
-#endif  // EXTENSIONS_BROWSER_API_WEB_REQUEST_WEB_REQUEST_API_UTILS_H_