Revert of Adds resource_provider::ResourceProvider

components/resource_provider/file_utils.cc

-// Copyright 2015 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 "components/resource_provider/file_utils.h"
-
-#include "base/files/file_path.h"
-#include "base/path_service.h"
-#include "base/strings/string_util.h"
-#include "url/gurl.h"
-
-namespace resource_provider {
-namespace {
-
-bool IsPathNameValid(const std::string& name) {
-  if (name.empty() || name == "." || name == "..")
-    return false;
-
-  for (auto c : name) {
-    if (!IsAsciiAlpha(c) && !IsAsciiDigit(c) && c != '_' && c != '.')
-      return false;
-  }
-  return true;
-}
-
-}  // namespace
-
-base::FilePath GetPathForApplicationUrl(const GURL& application_url) {
-  if (application_url.scheme() != "mojo")
-    return base::FilePath();
-
-  std::string path = application_url.path();
-  base::TrimString(path, "/", &path);
-
-  if (!IsPathNameValid(path))
-    return base::FilePath();
-
-  base::FilePath base_path;
-  PathService::Get(base::DIR_EXE, &base_path);
-  return base_path.AppendASCII(path).AppendASCII("resources");
-}
-
-base::FilePath GetPathForResourceNamed(const base::FilePath& app_path,
-                                       const std::string& resource_path) {
-  CHECK(!app_path.empty());
-
-  if (resource_path.empty() || resource_path[0] == '/' ||
-      resource_path.back() == '/' ||
-      resource_path.find("//") != std::string::npos)
-    return base::FilePath();
-
-  std::vector<std::string> path_components;
-  Tokenize(resource_path, "/", &path_components);
-  if (path_components.empty())
-    return base::FilePath();
-
-  base::FilePath result(app_path);
-  for (const auto& path_component : path_components) {
-    if (!IsPathNameValid(path_component))
-      return base::FilePath();
-    result = result.AppendASCII(path_component);
-  }
-  return result;
-}
-
-}  // namespace resource_provider