Fail tests fast if overriding the Windows registry fails.

chrome/browser/profile_resetter/triggered_profile_resetter_win_unittest.cc

 // Copyright 2015 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/browser/profile_resetter/triggered_profile_resetter.h"
 
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/bit_cast.h"
 #include "base/memory/ptr_util.h"
 #include "base/metrics/field_trial.h"
 #include "base/test/test_reg_util_win.h"
 #include "base/win/registry.h"
 #include "chrome/browser/prefs/browser_prefs.h"
 #include "chrome/browser/profile_resetter/triggered_profile_resetter_factory.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_profile.h"
 #include "components/prefs/pref_service.h"
 #include "components/variations/entropy_provider.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using base::win::RegKey;
 
 class TriggeredProfileResetterTest : public testing::Test {
  protected:
   void SetUp() override {
-    override_manager_.OverrideRegistry(HKEY_CURRENT_USER);
+    ASSERT_NO_FATAL_FAILURE(
+        override_manager_.OverrideRegistry(HKEY_CURRENT_USER));
 
     // Activate the triggered reset field trial for these tests.
     field_trial_list_.reset(
         new base::FieldTrialList(
             base::MakeUnique<metrics::SHA1EntropyProvider>("foo")));
     base::FieldTrial* trial = base::FieldTrialList::CreateFieldTrial(
         "TriggeredResetFieldTrial", "On");
     trial->group();
   }
 
@@ skipping 58 matching lines @@
   const wchar_t kExpectedToolName[] =
       L"ToolMcToolToolMcToolToolMcToolToolMcToolToolMcToolToolMcToolToolMcTool"
       L"ToolMcToolToolMcToolToolMcTool";
   SetRegTimestampAndToolName(kLongToolName, nullptr);
   TriggeredProfileResetter triggered_profile_resetter(&profile_);
   triggered_profile_resetter.Activate();
   EXPECT_TRUE(triggered_profile_resetter.HasResetTrigger());
   EXPECT_STREQ(kExpectedToolName,
                triggered_profile_resetter.GetResetToolName().c_str());
 }