(re-commit) Implement installation of the Chrome App Host.

chrome/installer/util/chrome_app_host_operations.cc

Index: chrome/installer/util/chrome_app_host_operations.cc
diff --git a/chrome/installer/util/chrome_app_host_operations.cc b/chrome/installer/util/chrome_app_host_operations.cc
new file mode 100644
index 0000000000000000000000000000000000000000..07427f5194a6d24a784a2e777b054e3b0a43cf3a
--- /dev/null
+++ b/chrome/installer/util/chrome_app_host_operations.cc
@@ -0,0 +1,100 @@
+// 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/installer/util/chrome_app_host_operations.h"
+
+#include "base/command_line.h"
+#include "base/file_path.h"
+#include "base/logging.h"
+#include "chrome/installer/util/browser_distribution.h"
+#include "chrome/installer/util/channel_info.h"
+#include "chrome/installer/util/helper.h"
+#include "chrome/installer/util/master_preferences.h"
+#include "chrome/installer/util/master_preferences_constants.h"
+#include "chrome/installer/util/util_constants.h"
+
+namespace installer {
+
+void ChromeAppHostOperations::ReadOptions(
+    const MasterPreferences& prefs,
+    std::set<std::wstring>* options) const {
+  DCHECK(options);
+
+  bool pref_value;
+  if (prefs.GetBool(master_preferences::kMultiInstall, &pref_value) &&
+      pref_value) {
+    options->insert(kOptionMultiInstall);
+  }
+}
+
+void ChromeAppHostOperations::ReadOptions(
+    const CommandLine& uninstall_command,
+    std::set<std::wstring>* options) const {
+  DCHECK(options);
+
+  if (uninstall_command.HasSwitch(switches::kMultiInstall))
+    options->insert(kOptionMultiInstall);
+}
+
+void ChromeAppHostOperations::AddKeyFiles(
+    const std::set<std::wstring>& options,
+    std::vector<FilePath>* key_files) const {
+}
+
+void ChromeAppHostOperations::AddComDllList(
+    const std::set<std::wstring>& options,
+    std::vector<FilePath>* com_dll_list) const {
+}
+
+void ChromeAppHostOperations::AppendProductFlags(
+    const std::set<std::wstring>& options,
+    CommandLine* cmd_line) const {
+  DCHECK(cmd_line);
+  bool is_multi_install = options.find(kOptionMultiInstall) != options.end();
+
+  // Non-multi-install not supported for the app host.
+  DCHECK(is_multi_install);
+
+  // Add --multi-install if it isn't already there.
+  if (is_multi_install && !cmd_line->HasSwitch(switches::kMultiInstall))
+    cmd_line->AppendSwitch(switches::kMultiInstall);
+
+  // --app-host is always needed.
+  cmd_line->AppendSwitch(switches::kChromeAppHost);
+}
+
+void ChromeAppHostOperations::AppendRenameFlags(
+    const std::set<std::wstring>& options,
+    CommandLine* cmd_line) const {
+  DCHECK(cmd_line);
+  bool is_multi_install = options.find(kOptionMultiInstall) != options.end();
+
+  // Non-multi-install not supported for the app host.
+  DCHECK(is_multi_install);
+
+  // Add --multi-install if it isn't already there.
+  if (is_multi_install && !cmd_line->HasSwitch(switches::kMultiInstall))
+    cmd_line->AppendSwitch(switches::kMultiInstall);
+}
+
+bool ChromeAppHostOperations::SetChannelFlags(
+    const std::set<std::wstring>& options,
+    bool set,
+    ChannelInfo* channel_info) const {
+#if defined(GOOGLE_CHROME_BUILD)
+  DCHECK(channel_info);
+  bool modified = channel_info->SetAppHost(set);
+
+  return modified;
+#else
+  return false;
+#endif
+}
+
+bool ChromeAppHostOperations::ShouldCreateUninstallEntry(
+    const std::set<std::wstring>& options) const {
+  return false;
+}
+
+}  // namespace installer