Always use the source channel layout with AudioBufferConverter.

media/filters/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 "media/filters/pipeline_integration_test_base.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_util.h"
@@ skipping 945 matching lines @@
   source.EndOfStream();
 
   EXPECT_EQ(1u, pipeline_->GetBufferedTimeRanges().size());
   EXPECT_EQ(0, pipeline_->GetBufferedTimeRanges().start(0).InMilliseconds());
   EXPECT_EQ(313, pipeline_->GetBufferedTimeRanges().end(0).InMilliseconds());
 
   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());
+  // Verify that codec delay was stripped.
+  EXPECT_EQ("1.01,2.71,4.18,4.32,3.04,1.12,", GetAudioHash());
 }
 
 TEST_P(PipelineIntegrationTest, MediaSource_MP3_TimestampOffset) {
   MockMediaSource source("sfx.mp3", kMP3, kAppendWholeFile, GetParam());
   StartPipelineWithMediaSource(&source);
   EXPECT_EQ(313, source.last_timestamp_offset().InMilliseconds());
 
   // There are 576 silent frames at the start of this mp3.  The second append
   // should trim them off.
   const base::TimeDelta mp3_preroll_duration =
@@ skipping 466 matching lines @@
 }
 
 // For MediaSource tests, generate two sets of tests: one using FrameProcessor,
 // and one using LegacyFrameProcessor.
 INSTANTIATE_TEST_CASE_P(NewFrameProcessor, PipelineIntegrationTest,
                         Values(false));
 INSTANTIATE_TEST_CASE_P(LegacyFrameProcessor, PipelineIntegrationTest,
                         Values(true));
 
 }  // namespace media