Revert of Makes the component installers return a Result instead of a bool.

ios/chrome/browser/net/crl_set_fetcher.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 "ios/chrome/browser/net/crl_set_fetcher.h"
 
 #include <stdint.h>
 
 #include "base/bind.h"
-#include "base/bind_helpers.h"
 #include "base/files/file_util.h"
 #include "base/numerics/safe_conversions.h"
 #include "base/rand_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/time/time.h"
 #include "base/trace_event/trace_event.h"
 #include "components/component_updater/component_updater_service.h"
 #include "components/update_client/update_client.h"
-#include "components/update_client/utils.h"
 #include "ios/chrome/browser/chrome_constants.h"
 #include "ios/web/public/web_thread.h"
 #include "net/cert/crl_set.h"
 #include "net/cert/crl_set_storage.h"
 #include "net/ssl/ssl_config_service.h"
 
 using component_updater::ComponentUpdateService;
 
 CRLSetFetcher::CRLSetFetcher() : cus_(nullptr) {}
 
@@ skipping 123 matching lines @@
   DCHECK_CURRENTLY_ON(web::WebThread::FILE);
 
   DeleteFile(GetCRLSetFilePath(), false /* not recursive */);
 }
 
 void CRLSetFetcher::OnUpdateError(int error) {
   LOG(WARNING) << "CRLSetFetcher got error " << error
                << " from component installer";
 }
 
-update_client::CrxInstaller::Result CRLSetFetcher::Install(
-    const base::DictionaryValue& manifest,
-    const base::FilePath& unpack_path) {
-  return update_client::InstallFunctionWrapper(
-      base::Bind(&CRLSetFetcher::DoInstall, base::Unretained(this),
-                 base::ConstRef(manifest), base::ConstRef(unpack_path)));
-}
-
-bool CRLSetFetcher::DoInstall(const base::DictionaryValue& manifest,
-                              const base::FilePath& unpack_path) {
+bool CRLSetFetcher::Install(const base::DictionaryValue& manifest,
+                            const base::FilePath& unpack_path) {
   base::FilePath crl_set_file_path =
       unpack_path.Append(FILE_PATH_LITERAL("crl-set"));
   base::FilePath save_to = GetCRLSetFilePath();
 
   std::string crl_set_bytes;
   if (!base::ReadFileToString(crl_set_file_path, &crl_set_bytes)) {
     LOG(WARNING) << "Failed to find crl-set file inside CRX";
     return false;
   }
 
@@ skipping 55 matching lines @@
 bool CRLSetFetcher::GetInstalledFile(const std::string& file,
                                      base::FilePath* installed_file) {
   return false;
 }
 
 bool CRLSetFetcher::Uninstall() {
   return false;
 }
 
 CRLSetFetcher::~CRLSetFetcher() {}