Refactor chrome_launcher_support::GetAnyChromePath.

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;
 }
 
 namespace chrome_launcher_support {
 
 enum InstallationLevel {
   USER_LEVEL_INSTALLATION,
   SYSTEM_LEVEL_INSTALLATION,
 };
 
 // Returns the path to an installed chrome.exe at the specified level, if it can
 // be found in the registry. 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);
+// If |is_sxs| is true, gets the path to the SxS (Canary) version of chrome.exe.
+base::FilePath GetChromePathForInstallationLevel(InstallationLevel level,
+                                                 bool is_sxs);
 
 // Returns the path to an installed chrome.exe, or an empty path. Prefers a
 // system-level installation to a user-level installation. Uses the registry to
-// identify a Chrome installation location. The file path returned (if any) is
+// identify a Chrome installation location. If |is_sxs| is true, gets the path
+// to the SxS (Canary) version of chrome.exe. The file path returned (if any) is
 // guaranteed to exist.
-base::FilePath GetAnyChromePath();
-
-// Returns the path to an installed SxS chrome.exe, or an empty path. Prefers a
-// user-level installation to a system-level installation. Uses the registry to
-// identify a Chrome Canary installation location. The file path returned (if
-// any) is guaranteed to exist.
-base::FilePath GetAnyChromeSxSPath();
+base::FilePath GetAnyChromePath(bool is_sxs);
 
 }  // namespace chrome_launcher_support
 
 #endif  // CHROME_INSTALLER_LAUNCHER_SUPPORT_CHROME_LAUNCHER_SUPPORT_H_