Elevated install of recovery component (component update part)

chrome/browser/component_updater/default_component_installer.cc

 // Copyright 2013 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 "base/bind.h"
 #include "base/file_util.h"
 #include "base/files/file_enumerator.h"
 #include "base/files/file_path.h"
 #include "base/values.h"
 #include "base/version.h"
@@ skipping 81 matching lines @@
       content::BrowserThread::UI,
       FROM_HERE,
       base::Bind(&ComponentInstallerTraits::ComponentReady,
                  base::Unretained(installer_traits_.get()),
                  current_version_,
                  GetInstallDirectory(),
                  base::Passed(&manifest_copy)));
   return true;
 }
 
+base::FilePath DefaultComponentInstaller::GetBackupPath() const {
+  return base::FilePath();
+}
+
+void DefaultComponentInstaller::InstallExternally() {
+}
+
 bool DefaultComponentInstaller::GetInstalledFile(
     const std::string& file,
     base::FilePath* installed_file) {
   if (current_version_.Equals(base::Version(kNullVersion)))
     return false;  // No component has been installed yet.
 
   *installed_file = installer_traits_->GetBaseDirectory()
                         .AppendASCII(current_version_.GetString())
                         .AppendASCII(file);
   return true;
@@ skipping 98 matching lines @@
 
   if (current_version_.CompareTo(base::Version(kNullVersion)) > 0) {
     scoped_ptr<base::DictionaryValue> manifest_copy(
         current_manifest_->DeepCopy());
     installer_traits_->ComponentReady(
         current_version_, GetInstallDirectory(), manifest_copy.Pass());
   }
 }
 
 }  // namespace component_updater