Update NotificationImageLoaderTest with better timeout values.

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/TestingPlatformSupport.h"
@@ skipping 78 matching lines @@
   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);
   EXPECT_EQ(LoadState::kNotLoaded, loaded());
 
   // Now advance time until a timeout should be expected.
-  // Note: Because of crbug.com/657517, the platform's time doesn't
-  // actually update unless a task runs, so the platform still thinks it's the
-  // start time. To trigger a timeout, we have to advance the full time again.
-  testingPlatform.runForPeriodSeconds(kImageFetchTimeoutInMs / 1000 + 1);
+  testingPlatform.runForPeriodSeconds(2);
 
   // If the loader times out, it calls the callback and returns an empty bitmap.
   EXPECT_EQ(LoadState::kLoadFailed, loaded());
 }
 
 }  // namspace
 }  // namespace blink