Switch to using an explicit ended signal instead of time comparison.

media/test/pipeline_integration_test.cc

 // Copyright (c) 2012 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 <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <utility>
 
@@ skipping 1131 matching lines @@
 
 // TODO(dalecurtis): Add an opus test file which FFmpeg and ChunkDemuxer will
 // both seek the same in and shows the difference of preroll.
 // http://crbug.com/509894
 
 TEST_F(PipelineIntegrationTest, BasicPlaybackLive) {
   ASSERT_EQ(PIPELINE_OK, Start("bear-320x240-live.webm", kHashed));
 
   // Live stream does not have duration in the initialization segment.
   // It will be set after the entire file is available.
-  EXPECT_CALL(*this, OnDurationChange()).Times(1);
+  EXPECT_CALL(*this, OnDurationChange()).Times(AtLeast(1));
 
   Play();
 
   ASSERT_TRUE(WaitUntilOnEnded());
 
   EXPECT_HASH_EQ("f0be120a90a811506777c99a2cdf7cc1", GetVideoHash());
   EXPECT_HASH_EQ("-3.59,-2.06,-0.43,2.15,0.77,-0.95,", GetAudioHash());
 
   // TODO: Fix FFmpeg code to return higher resolution time values so
   // we don't have to truncate our expectations here.
@@ skipping 1315 matching lines @@
 
 TEST_F(PipelineIntegrationTest, BasicPlaybackPositiveStartTime) {
   ASSERT_EQ(PIPELINE_OK, Start("nonzero-start-time.webm"));
   Play();
   ASSERT_TRUE(WaitUntilOnEnded());
   ASSERT_EQ(base::TimeDelta::FromMicroseconds(396000),
             demuxer_->GetStartTime());
 }
 
 }  // namespace media