Implement installation of the Chrome App Host.

chrome/installer/mini_installer/configuration.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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/mini_installer/configuration.h"
 
 #include <windows.h>
 #include <shellapi.h>  // NOLINT
 
 #include "chrome/installer/mini_installer/appid.h"
 
@@ skipping 15 matching lines @@
   if (args_ != NULL) {
     ::LocalFree(args_);
     args_ = NULL;
   }
   chrome_app_guid_ = google_update::kAppGuid;
   command_line_ = NULL;
   operation_ = INSTALL_PRODUCT;
   argument_count_ = 0;
   has_chrome_ = false;
   has_chrome_frame_ = false;
+  has_app_host_ = false;
   is_multi_install_ = false;
   is_system_level_ = false;
 }
 
 bool Configuration::Initialize() {
   return InitializeFromCommandLine(::GetCommandLine());
 }
 
 // This is its own function so that unit tests can provide their own command
 // lines.  |command_line| is shared with this instance in the sense that this
 // instance may refer to it at will throughout its lifetime, yet it will
 // not release it.
 bool Configuration::InitializeFromCommandLine(const wchar_t* command_line) {
   Clear();
 
   command_line_ = command_line;
   args_ = ::CommandLineToArgvW(command_line_, &argument_count_);
   if (args_ != NULL) {
     for (int i = 1; i < argument_count_; ++i) {
       if (0 == ::lstrcmpi(args_[i], L"--chrome-sxs"))
         chrome_app_guid_ = google_update::kSxSAppGuid;
       else if (0 == ::lstrcmpi(args_[i], L"--chrome"))
         has_chrome_ = true;
       else if (0 == ::lstrcmpi(args_[i], L"--chrome-frame"))
         has_chrome_frame_ = true;
+      else if (0 == ::lstrcmpi(args_[i], L"--app-host"))
+        has_app_host_ = true;
       else if (0 == ::lstrcmpi(args_[i], L"--multi-install"))
         is_multi_install_ = true;
       else if (0 == ::lstrcmpi(args_[i], L"--system-level"))
         is_system_level_ = true;
       else if (0 == ::lstrcmpi(args_[i], L"--cleanup"))
         operation_ = CLEANUP;
     }
 
-    // Single-install is either Chrome or Chrome Frame.
+    // Single-install defaults to Chrome.
     if (!is_multi_install_)
-      has_chrome_ = !has_chrome_frame_;
+      has_chrome_ = !(has_chrome_frame_ || has_app_host_);
   }
   return args_ != NULL;
 }
 
 }  // namespace mini_installer