Use InstallDetails in installer_util.

chrome/installer/util/install_util.h

Index: chrome/installer/util/install_util.h
diff --git a/chrome/installer/util/install_util.h b/chrome/installer/util/install_util.h
index 198d3385359faf09bd6a98dbc87ed715fcf2cbd1..3a586a65b0adb369e0a269f059ea943d1a95d72e 100644
--- a/chrome/installer/util/install_util.h
+++ b/chrome/installer/util/install_util.h
@@ -86,12 +86,10 @@ class InstallUtil {
   // Returns true if this installation path is per user, otherwise returns false
   // (per machine install, meaning: the exe_path contains the path to Program
   // Files).
+  // TODO(grt): remove |exe_path| and consider replacing all callers with
+  // direct use of InstallDetails.
   static bool IsPerUserInstall(const base::FilePath& exe_path);
 
-  // Resets internal state for IsPerUserInstall so that the next call recomputes
-  // with fresh data.
-  static void ResetIsPerUserInstallForTest();
-
   // Returns true if this is running setup process for Chrome SxS (as
   // indicated by the presence of --chrome-sxs on the command line) or if this
   // is running Chrome process from the Chrome SxS installation (as indicated