Add GetAnyChromeSxSPath.

chrome/installer/launcher_support/chrome_launcher_support.cc

 // 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/launcher_support/chrome_launcher_support.h"
 
 #include <windows.h>
 #include <tchar.h>
 
 #include "base/command_line.h"
@@ skipping 16 matching lines @@
 const wchar_t kGoogleRegClientStateKey[] =
     L"Software\\Google\\Update\\ClientState";
 const wchar_t kGoogleRegClientsKey[] = L"Software\\Google\\Update\\Clients";
 const wchar_t kRegVersionField[] = L"pv";
 
 // Copied from binaries_installer_internal.cc
 const wchar_t kAppHostAppId[] = L"{FDA71E6F-AC4C-4a00-8B70-9958A68906BF}";
 
 // Copied from chrome_appid.cc.
 const wchar_t kBinariesAppGuid[] = L"{4DC8B4CA-1BDA-483e-B5FA-D3C12E15B62D}";
+const wchar_t kSxSBrowserAppGuid[] = L"{4ea16ac7-fd5a-47c3-875b-dbf4a2008c20}";

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

nit: document this as "Coped from google_chrome_sxs_distribution.cc." since
that's the authoritative definition of the value.

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

Done.

 
 // Copied from google_chrome_distribution.cc.
 const wchar_t kBrowserAppGuid[] = L"{8A69D345-D564-463c-AFF1-A69D9E530F96}";
 
 // Copied from util_constants.cc.
 const wchar_t kChromeAppHostExe[] = L"app_host.exe";
 const char kChromeAppLauncher[] = "app-launcher";
 const wchar_t kChromeExe[] = L"chrome.exe";
 const wchar_t kUninstallArgumentsField[] = L"UninstallArguments";
 const wchar_t kUninstallStringField[] = L"UninstallString";
@@ skipping 116 matching lines @@
 base::FilePath GetChromePathForInstallationLevel(InstallationLevel level) {
   return FindExeRelativeToSetupExe(
       GetSetupExeForInstallationLevel(level), kChromeExe);
 }
 
 base::FilePath GetAppHostPathForInstallationLevel(InstallationLevel level) {
   return FindExeRelativeToSetupExe(
       GetSetupExeFromRegistry(level, kAppHostAppId), kChromeAppHostExe);
 }
 
+base::FilePath GetChromeSxSPathForInstallationLevel(InstallationLevel level) {
+  return FindExeRelativeToSetupExe(
+      GetSetupExeFromRegistry(level, kSxSBrowserAppGuid), kChromeExe);
+}
+
 base::FilePath GetAnyChromePath() {
   base::FilePath chrome_path;
   if (chrome_path.empty())
     chrome_path = GetChromePathForInstallationLevel(SYSTEM_LEVEL_INSTALLATION);
   if (chrome_path.empty())
     chrome_path = GetChromePathForInstallationLevel(USER_LEVEL_INSTALLATION);
   return chrome_path;
 }
 
 base::FilePath GetAnyAppHostPath() {
   base::FilePath app_host_path;
   if (app_host_path.empty()) {
     app_host_path = GetAppHostPathForInstallationLevel(
         SYSTEM_LEVEL_INSTALLATION);
   }
   if (app_host_path.empty())
     app_host_path = GetAppHostPathForInstallationLevel(USER_LEVEL_INSTALLATION);
   return app_host_path;
 }
 
+base::FilePath GetAnyChromeSxSPath() {
+  base::FilePath path;
+  if (path.empty())
+    path = GetChromeSxSPathForInstallationLevel(SYSTEM_LEVEL_INSTALLATION);
+  if (path.empty())
+    path = GetChromeSxSPathForInstallationLevel(USER_LEVEL_INSTALLATION);
+  return path;
+}
+
 bool IsAppHostPresent() {
   base::FilePath app_host_exe = GetAnyAppHostPath();
   return !app_host_exe.empty();
 }
 
 InstallationState GetAppLauncherInstallationState() {
   if (IsAppLauncherEnabledAtLevel(SYSTEM_LEVEL_INSTALLATION))
     return INSTALLED_AT_SYSTEM_LEVEL;
 
   if (IsAppLauncherEnabledAtLevel(USER_LEVEL_INSTALLATION))
     return INSTALLED_AT_USER_LEVEL;
 
   return NOT_INSTALLED;
 }
 
 bool IsAppLauncherPresent() {
   return GetAppLauncherInstallationState() != NOT_INSTALLED;
 }
 
 bool IsChromeBrowserPresent() {
   return IsProductInstalled(USER_LEVEL_INSTALLATION, kBrowserAppGuid) ||
       IsProductInstalled(SYSTEM_LEVEL_INSTALLATION, kBrowserAppGuid);
 }
 
 }  // namespace chrome_launcher_support