Mike's change.

chrome/installer/gcapi/gcapi_reactivation.cc

Index: chrome/installer/gcapi/gcapi_reactivation.cc
diff --git a/chrome/installer/gcapi/gcapi_reactivation.cc b/chrome/installer/gcapi/gcapi_reactivation.cc
index 6755e2fc26256262653c8a40e31bb7b0c879d298..87abc0e8637c075e11abe12c10f717f32f55551b 100644
--- a/chrome/installer/gcapi/gcapi_reactivation.cc
+++ b/chrome/installer/gcapi/gcapi_reactivation.cc
@@ -7,6 +7,7 @@
 #include "base/time.h"
 #include "base/win/registry.h"
 #include "chrome/installer/util/google_update_constants.h"
+#include "chrome/installer/gcapi/gcapi.h"
 
 using base::Time;
 using base::win::RegKey;
@@ -44,9 +45,14 @@ bool HasBeenReactivatedByBrandCodes(
   return success;
 }
 
-bool SetReactivationBrandCode(const std::wstring& brand_code) {
+bool SetReactivationBrandCode(const std::wstring& brand_code, int shell_mode) {
   bool success = false;
 
+  // This function currently only should be run in a non-elevated shell,
+  // so we return "true" if it is being invoked from an elevated shell.
+  if (shell_mode == GCAPI_INVOKED_UAC_ELEVATION)
+    return true;
+
   std::wstring path(google_update::kRegPathClientState);
   path += L"\\";
   path += google_update::kChromeUpgradeCode;