TestingPlatformSupport: register Platform instance correctly

third_party/WebKit/Source/modules/notifications/NotificationImageLoaderTest.cpp

 // Copyright 2016 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 "modules/notifications/NotificationImageLoader.h"
 
 #include "core/dom/ExecutionContext.h"
 #include "core/fetch/MemoryCache.h"
 #include "core/testing/DummyPageHolder.h"
 #include "platform/testing/HistogramTester.h"
@@ skipping 79 matching lines @@
   m_histogramTester.expectTotalCount("Notifications.LoadFailTime.Icon", 0);
   Platform::current()->getURLLoaderMockFactory()->serveAsynchronousRequests();
   EXPECT_EQ(LoadState::kLoadSuccessful, loaded());
   m_histogramTester.expectTotalCount("Notifications.LoadFinishTime.Icon", 1);
   m_histogramTester.expectUniqueSample("Notifications.LoadFileSize.Icon", 7439,
                                        1);
   m_histogramTester.expectTotalCount("Notifications.LoadFailTime.Icon", 0);
 }
 
 TEST_F(NotificationImageLoaderTest, TimeoutTest) {
+  ScopedTestingPlatformSupport<TestingPlatformSupportWithMockScheduler>
+      platform;
+
   // To test for a timeout, this needs to override the clock in the platform.
   // Just creating the mock platform will do everything to set it up.
-  TestingPlatformSupportWithMockScheduler testingPlatform;
   KURL url = registerMockedURL(kIcon500x500);
   loadImage(url);
 
   // Run the platform for kImageFetchTimeoutInMs-1 seconds. This should not
   // result in a timeout.
-  testingPlatform.runForPeriodSeconds(kImageFetchTimeoutInMs / 1000 - 1);
+  platform->runForPeriodSeconds(kImageFetchTimeoutInMs / 1000 - 1);
   EXPECT_EQ(LoadState::kNotLoaded, loaded());
   m_histogramTester.expectTotalCount("Notifications.LoadFinishTime.Icon", 0);
   m_histogramTester.expectTotalCount("Notifications.LoadFileSize.Icon", 0);
   m_histogramTester.expectTotalCount("Notifications.LoadFailTime.Icon", 0);
 
   // Now advance time until a timeout should be expected.
-  testingPlatform.runForPeriodSeconds(2);
+  platform->runForPeriodSeconds(2);
 
   // If the loader times out, it calls the callback and returns an empty bitmap.
   EXPECT_EQ(LoadState::kLoadFailed, loaded());
   m_histogramTester.expectTotalCount("Notifications.LoadFinishTime.Icon", 0);
   m_histogramTester.expectTotalCount("Notifications.LoadFileSize.Icon", 0);
   // Should log a non-zero failure time.
   m_histogramTester.expectTotalCount("Notifications.LoadFailTime.Icon", 1);
   m_histogramTester.expectBucketCount("Notifications.LoadFailTime.Icon", 0, 0);
 }
 
 }  // namspace
 }  // namespace blink