Move Mac LaunchOnStartup enable/disable to File thread

chrome/browser/background_mode_manager_win.cc

+// Copyright (c) 2010 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 "app/l10n_util.h"
+#include "base/base_paths.h"
+#include "base/command_line.h"
+#include "base/file_path.h"
+#include "base/logging.h"
+#include "base/path_service.h"
+#include "base/task.h"
+#include "base/win/registry.h"
+#include "chrome/browser/background_mode_manager.h"
+#include "chrome/browser/browser_thread.h"
+#include "chrome/common/chrome_switches.h"
+#include "grit/generated_resources.h"
+
+namespace {
+
+class DisableLaunchOnStartupTask : public Task {
+ public:
+  virtual void Run();
+};
+
+class EnableLaunchOnStartupTask : public Task {
+ public:
+  virtual void Run();
+};
+
+const HKEY kBackgroundModeRegistryRootKey = HKEY_CURRENT_USER;
+const wchar_t* kBackgroundModeRegistrySubkey =
+    L"Software\\Microsoft\\Windows\\CurrentVersion\\Run";
+const wchar_t* kBackgroundModeRegistryKeyName = L"chromium";
+
+void DisableLaunchOnStartupTask::Run() {
+  const wchar_t* key_name = kBackgroundModeRegistryKeyName;
+  base::win::RegKey read_key(kBackgroundModeRegistryRootKey,
+                             kBackgroundModeRegistrySubkey, KEY_READ);
+  base::win::RegKey write_key(kBackgroundModeRegistryRootKey,
+                              kBackgroundModeRegistrySubkey, KEY_WRITE);
+  if (read_key.ValueExists(key_name) && !write_key.DeleteValue(key_name))
+    NOTREACHED() << "Failed to deregister launch on login.";
+}
+
+void EnableLaunchOnStartupTask::Run() {
+  // TODO(rickcam): Bug 53597: Make RegKey mockable.
+  // TODO(rickcam): Bug 53600: Use distinct registry keys per flavor+profile.
+  const wchar_t* key_name = kBackgroundModeRegistryKeyName;
+  base::win::RegKey read_key(kBackgroundModeRegistryRootKey,
+                             kBackgroundModeRegistrySubkey, KEY_READ);
+  base::win::RegKey write_key(kBackgroundModeRegistryRootKey,
+                              kBackgroundModeRegistrySubkey, KEY_WRITE);
+  FilePath executable;
+  if (!PathService::Get(base::FILE_EXE, &executable))
+    return;
+  std::wstring new_value = executable.value() + L" --no-startup-window";
+  if (read_key.ValueExists(key_name)) {
+    std::wstring current_value;
+    if (read_key.ReadValue(key_name, &current_value) &&
+        (current_value == new_value)) {
+      return;
+    }
+  }
+  if (!write_key.WriteValue(key_name, new_value.c_str()))
+    NOTREACHED() << "Failed to register launch on login.";
+}
+
+}  // namespace
+
+void BackgroundModeManager::EnableLaunchOnStartup(bool should_launch) {
+  // This functionality is only defined for default profile, currently.
+  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kUserDataDir))
+    return;
+  if (should_launch) {
+    BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
+                            new EnableLaunchOnStartupTask());
+  } else {
+    BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
+                            new DisableLaunchOnStartupTask());
+  }
+}
+
+string16 BackgroundModeManager::GetPreferencesMenuLabel() {
+  return l10n_util::GetStringUTF16(IDS_OPTIONS);
+}