Fail tests fast if overriding the Windows registry fails.

chrome/browser/google/google_update_win_unittest.cc

Index: chrome/browser/google/google_update_win_unittest.cc
diff --git a/chrome/browser/google/google_update_win_unittest.cc b/chrome/browser/google/google_update_win_unittest.cc
index ef886ff487638317c668b668a171d41b7830fbac..2ea70c0b3000d57b7e63f7126f8bb6097748ae7e 100644
--- a/chrome/browser/google/google_update_win_unittest.cc
+++ b/chrome/browser/google/google_update_win_unittest.cc
@@ -560,8 +560,10 @@ class GoogleUpdateWinTest : public ::testing::TestWithParam<bool> {
         new base::ScopedPathOverride(base::DIR_LOCAL_APP_DATA, temp));
 
     // Override the registry so that tests can freely push state to it.
-    registry_override_manager_.OverrideRegistry(HKEY_CURRENT_USER);
-    registry_override_manager_.OverrideRegistry(HKEY_LOCAL_MACHINE);
+    ASSERT_NO_FATAL_FAILURE(
+        registry_override_manager_.OverrideRegistry(HKEY_CURRENT_USER));
+    ASSERT_NO_FATAL_FAILURE(
+        registry_override_manager_.OverrideRegistry(HKEY_LOCAL_MACHINE));
 
     // Chrome is installed.
     const HKEY root =