Remove chrome-extension-resource:// scheme

chrome/browser/extensions/extension_resource_protocols.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 "chrome/browser/extensions/extension_resource_protocols.h"
-
-#include "base/files/file_path.h"
-#include "base/macros.h"
-#include "base/memory/ptr_util.h"
-#include "base/memory/weak_ptr.h"
-#include "base/path_service.h"
-#include "base/threading/sequenced_worker_pool.h"
-#include "base/threading/thread_checker.h"
-#include "chrome/common/chrome_paths.h"
-#include "content/public/browser/browser_thread.h"
-#include "extensions/common/file_util.h"
-#include "net/url_request/url_request_file_job.h"
-
-namespace {
-
-base::FilePath ResolvePath(const GURL& url) {
-  base::FilePath root_path;
-  PathService::Get(chrome::DIR_RESOURCES_EXTENSION, &root_path);
-  return extensions::file_util::ExtensionResourceURLToFilePath(url, root_path);
-}
-
-class ExtensionResourcesJob : public net::URLRequestFileJob {
- public:
-  ExtensionResourcesJob(net::URLRequest* request,
-                        net::NetworkDelegate* network_delegate)
-      : net::URLRequestFileJob(
-            request, network_delegate, base::FilePath(),
-            content::BrowserThread::GetBlockingPool()->
-                GetTaskRunnerWithShutdownBehavior(
-                    base::SequencedWorkerPool::SKIP_ON_SHUTDOWN)),
-        weak_ptr_factory_(this) {}
-
-  void Start() override;
-
-  bool IsRedirectResponse(GURL* location, int* http_status_code) override;
-
- protected:
-  ~ExtensionResourcesJob() override {}
-
-  void ResolvePathDone(const base::FilePath& resolved_path);
-
- private:
-  base::ThreadChecker thread_checker_;
-
-  base::WeakPtrFactory<ExtensionResourcesJob> weak_ptr_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(ExtensionResourcesJob);
-};
-
-void ExtensionResourcesJob::Start() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  content::BrowserThread::PostTaskAndReplyWithResult(
-      content::BrowserThread::FILE, FROM_HERE,
-      base::Bind(&ResolvePath, request()->url()),
-      base::Bind(&ExtensionResourcesJob::ResolvePathDone,
-          weak_ptr_factory_.GetWeakPtr()));
-}
-
-bool ExtensionResourcesJob::IsRedirectResponse(GURL* location,
-                                               int* http_status_code) {
-  return false;
-}
-
-void ExtensionResourcesJob::ResolvePathDone(
-    const base::FilePath& resolved_path) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  file_path_ = resolved_path;
-  net::URLRequestFileJob::Start();
-}
-
-class ExtensionResourceProtocolHandler
-    : public net::URLRequestJobFactory::ProtocolHandler {
- public:
-  ExtensionResourceProtocolHandler() {}
-  ~ExtensionResourceProtocolHandler() override {}
-
-  net::URLRequestJob* MaybeCreateJob(
-      net::URLRequest* request,
-      net::NetworkDelegate* network_delegate) const override;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(ExtensionResourceProtocolHandler);
-};
-
-// Creates URLRequestJobs for chrome-extension-resource:// URLs.
-net::URLRequestJob*
-ExtensionResourceProtocolHandler::MaybeCreateJob(
-    net::URLRequest* request, net::NetworkDelegate* network_delegate) const {
-  return new ExtensionResourcesJob(request, network_delegate);
-}
-
-}  // namespace
-
-std::unique_ptr<net::URLRequestJobFactory::ProtocolHandler>
-CreateExtensionResourceProtocolHandler() {
-  return base::MakeUnique<ExtensionResourceProtocolHandler>();
-}