Add GetAnyChromeSxSPath.

chrome/installer/launcher_support/chrome_launcher_support.h

 // 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.
 
 #ifndef CHROME_INSTALLER_LAUNCHER_SUPPORT_CHROME_LAUNCHER_SUPPORT_H_
 #define CHROME_INSTALLER_LAUNCHER_SUPPORT_CHROME_LAUNCHER_SUPPORT_H_
 
 namespace base {
 class FilePath;
 }
@@ skipping 18 matching lines @@
 // Returns the path to an installed chrome.exe at the specified level, if it can
 // be found via Omaha client state. Prefers the installer from a multi-install,
 // but may also return that of a single-install of Chrome if no multi-install
 // exists.
 base::FilePath GetChromePathForInstallationLevel(InstallationLevel level);
 
 // Returns the path to an installed app_host.exe at the specified level, if
 // it can be found via Omaha client state.
 base::FilePath GetAppHostPathForInstallationLevel(InstallationLevel level);
 
+// Returns the path to an installed SxS chrome.exe at the specified level, if
+// it can be found via Omaha client state.
+base::FilePath GetChromeSxSPathForInstallationLevel(InstallationLevel level);
+
 // Returns the path to an installed chrome.exe, or an empty path. Prefers a
 // system-level installation to a user-level installation. Uses Omaha client
 // state to identify a Chrome installation location.
 // The file path returned (if any) is guaranteed to exist.
 base::FilePath GetAnyChromePath();
 
 // Returns the path to an installed app_host.exe, or an empty path. Prefers a
 // system-level installation to a user-level installation. Uses Omaha client
 // state to identify a App Host installation location.
 // The file path returned (if any) is guaranteed to exist.
 base::FilePath GetAnyAppHostPath();
 
+// Returns the path to an installed SxS chrome.exe, or an empty path. Prefers a

[grt (UTC plus 2), 2014/03/18 13:51:06]

currently, sxs is only installed at user level, so i suggest you switch this to
check user level before system level. may as well leave the probe into
system-level in place in case we support that in the future.

[jackhou1, 2014/03/18 23:39:10]

Done.

+// system-level installation to a user-level installation. Uses Omaha client
+// state to identify a Chrome Canary installation location.
+// The file path returned (if any) is guaranteed to exist.
+base::FilePath GetAnyChromeSxSPath();
+
 // Uninstalls the legacy app launcher by launching setup.exe with the uninstall
 // arguments from the App Launcher ClientState registry key. The uninstall will
 // run asynchronously.
 void UninstallLegacyAppLauncher(InstallationLevel level);
 
 // Returns true if App Host is installed (system-level or user-level),
 // or in the same directory as the current executable.
 bool IsAppHostPresent();
 
 // Returns the app launcher installation state. If the launcher is installed
 // at both system level and user level, system level is returned.
 InstallationState GetAppLauncherInstallationState();
 
 // Returns true if App Launcher is installed (system-level or user-level).
 bool IsAppLauncherPresent();
 
 // Returns true if the Chrome browser is installed (system-level or user-level).
 // If this is running in an official build, it will check if a non-canary build
 // if installed. If it is not an official build, it will always return true.
 bool IsChromeBrowserPresent();
 
 }  // namespace chrome_launcher_support
 
 #endif  // CHROME_INSTALLER_LAUNCHER_SUPPORT_CHROME_LAUNCHER_SUPPORT_H_