Wire up codec_delay() to MP3StreamParser and FFmpegAudioDecoder.

media/filters/pipeline_integration_test.cc

Index: media/filters/pipeline_integration_test.cc
diff --git a/media/filters/pipeline_integration_test.cc b/media/filters/pipeline_integration_test.cc
index 133c497db7372f459afb28109d4cde2ebac850d7..b3ff5a5cef3004d5941b3b98befbc84c514f4332 100644
--- a/media/filters/pipeline_integration_test.cc
+++ b/media/filters/pipeline_integration_test.cc
@@ -863,7 +863,7 @@ TEST_P(PipelineIntegrationTest, MediaSource_ADTS_TimestampOffset) {
 
 TEST_P(PipelineIntegrationTest, MediaSource_MP3) {
   MockMediaSource source("sfx.mp3", kMP3, kAppendWholeFile, GetParam());
-  StartPipelineWithMediaSource(&source);
+  StartHashedPipelineWithMediaSource(&source);
   source.EndOfStream();
 
   EXPECT_EQ(1u, pipeline_->GetBufferedTimeRanges().size());
@@ -873,6 +873,10 @@ TEST_P(PipelineIntegrationTest, MediaSource_MP3) {
   Play();
 
   EXPECT_TRUE(WaitUntilOnEnded());
+
+  // Verify that codec delay was stripped, if it wasn't the hash would be:
+  // "5.16,1.25,7.78,4.29,8.98,2.76,"
+  EXPECT_EQ("5.81,2.71,8.97,4.32,7.83,1.12,", GetAudioHash());
 }
 
 TEST_P(PipelineIntegrationTest, MediaSource_MP3_TimestampOffset) {