Implement an AutoLaunch experiment for Chrome for certain brand codes.

chrome/installer/util/auto_launch_util.cc

+// Copyright (c) 2011 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/auto_launch_util.h"
+
+#include "base/file_path.h"
+#include "base/logging.h"
+#include "base/string16.h"
+#include "base/utf_string_conversions.h"
+#include "base/win/registry.h"
+#include "base/win/win_util.h"
+#include "chrome/common/chrome_switches.h"
+#include "chrome/installer/util/util_constants.h"
+
+namespace auto_launch_util {
+
+bool WillLaunchAtLogin() {
+  base::win::RegKey key(HKEY_CURRENT_USER, base::win::kRunKey, KEY_QUERY_VALUE);

[grt (UTC plus 2), 2011/12/01 04:45:02]

replace lines 19-23 with:
string16 autolaunch;
if (!base::win::ReadCommandFromAutoRun(HKEY_CURRENT_USER,
base::win::kAutolaunchKeyValue, &autolaunch))

+
+  string16 autolaunch;
+  if (ERROR_SUCCESS != key.ReadValue(base::win::kAutolaunchKeyValue,
+                                     &autolaunch))
+    return false;
+
+  return autolaunch.find(
+      ASCIIToUTF16(switches::kAutoLaunchAtStartup)) != string16::npos;

[grt (UTC plus 2), 2011/12/01 04:45:02]

why this extra check?  isn't using our own name for the value sufficient?

+}
+
+void SetWillLaunchAtLogin(bool auto_launch, const FilePath& application_path) {
+  // When |auto_launch| is true, a FilePath must be given.
+  DCHECK(!application_path.empty() || !auto_launch);
+  base::win::RegKey key(HKEY_CURRENT_USER, base::win::kRunKey, KEY_SET_VALUE);
+  if (auto_launch) {
+    string16 cmd_line = L"\"";

[grt (UTC plus 2), 2011/12/01 04:45:02]

i know this works on windows, but is combining wchar_t literals with string16's
recommended?  i think i've seen ASCIIToUTF16 used for this sort of thing.

+    cmd_line += application_path.value();
+    cmd_line += L"\\";
+    cmd_line += installer::kChromeExe;
+    cmd_line += L"\" --";
+    cmd_line += ASCIIToUTF16(switches::kAutoLaunchAtStartup);
+    key.WriteValue(base::win::kAutolaunchKeyValue, cmd_line.c_str());

[grt (UTC plus 2), 2011/12/01 04:45:02]

use base::win:: AddCommandToAutoRun

+  } else {
+    key.DeleteValue(base::win::kAutolaunchKeyValue);

[grt (UTC plus 2), 2011/12/01 04:45:02]

use base::win::RemoveCommandFromAutoRun

+  }
+}
+
+}  // namespace auto_launch_util