Assert event timestamp to be monotonic and not from future

third_party/WebKit/Source/core/fetch/CachingCorrectnessTest.cpp

 /*
  * Copyright (c) 2014, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 124 matching lines @@
     }
 
     virtual void SetUp()
     {
         // Save the global memory cache to restore it upon teardown.
         m_globalMemoryCache = replaceMemoryCacheForTesting(MemoryCache::create());
 
         m_fetcher = ResourceFetcher::create(MockFetchContext::create());
 
         s_timeElapsed = 0.0;
-        m_originalTimeFunction = setTimeFunctionsForTesting(returnMockTime);
+        m_originalMonotonicTimeFunction = setMonotonicallyIncreasingTimeFunctionForTesting(returnMockTime);
+        m_originalCurrentTimeFunction = setCurrentTimeFunctionForTesting(returnMockTime);
     }
 
     virtual void TearDown()
     {
         memoryCache()->evictResources();
 
         // Yield the ownership of the global memory cache back.
         replaceMemoryCacheForTesting(m_globalMemoryCache.release());
 
-        setTimeFunctionsForTesting(m_originalTimeFunction);
+        setMonotonicallyIncreasingTimeFunctionForTesting(m_originalMonotonicTimeFunction);
+        setCurrentTimeFunctionForTesting(m_originalCurrentTimeFunction);
     }
 
     Persistent<MemoryCache> m_globalMemoryCache;
     Persistent<ResourceFetcher> m_fetcher;
-    TimeFunction m_originalTimeFunction;
+    TimeFunction m_originalMonotonicTimeFunction;
+    TimeFunction m_originalCurrentTimeFunction;
     static double s_timeElapsed;
 };
 
 double CachingCorrectnessTest::s_timeElapsed;
 
 TEST_F(CachingCorrectnessTest, FreshFromLastModified)
 {
     ResourceResponse fresh200Response;
     fresh200Response.setHTTPStatusCode(200);
     fresh200Response.setHTTPHeaderField("Date", kOriginalRequestDateAsString);
@@ skipping 390 matching lines @@
     firstResource->finish();
     memoryCache()->add(firstResource);
 
     advanceClock(500.);
 
     Resource* fetched = fetch();
     EXPECT_EQ(firstResource, fetched);
 }
 
 } // namespace blink