Changing policy while Chrome is running should refresh preferences without relaunching

chrome/browser/configuration_policy_provider_win_unittest.cc

Index: chrome/browser/configuration_policy_provider_win_unittest.cc
diff --git a/chrome/browser/configuration_policy_provider_win_unittest.cc b/chrome/browser/configuration_policy_provider_win_unittest.cc
index 4d39ff62ae74afe913435553e434598cb5bf0478..ed66b4f88000b064e9cc7a249c509779ec04ae56 100644
--- a/chrome/browser/configuration_policy_provider_win_unittest.cc
+++ b/chrome/browser/configuration_policy_provider_win_unittest.cc
@@ -113,6 +113,12 @@ class ConfigurationPolicyProviderWinTest : public testing::Test {
   void TestBooleanPolicy(ConfigurationPolicyStore::PolicyType type);
 
  private:
+  // A message loop must be declared and instantiated for these tests,
+  // because Windows policy provider create WaitableEvents and
+  // ObjectWatchers that require the tests to have a MessageLoop associated
+  // with the thread executing the tests.
+  MessageLoop loop_;
+
   // Keys are created for the lifetime of a test to contain
   // the sandboxed HKCU and HKLM hives, respectively.
   RegKey temp_hkcu_hive_key_;