Revert of Add Stop() to AudioDecoder.

media/filters/audio_decoder_selector_unittest.cc

Index: media/filters/audio_decoder_selector_unittest.cc
diff --git a/media/filters/audio_decoder_selector_unittest.cc b/media/filters/audio_decoder_selector_unittest.cc
index 27915c85e642e2a635c5bd1e99ad524ac2cb6617..be2daff6385b972cb2bb99b5fd213039d5e1d11c 100644
--- a/media/filters/audio_decoder_selector_unittest.cc
+++ b/media/filters/audio_decoder_selector_unittest.cc
@@ -8,7 +8,6 @@
 #include "base/message_loop/message_loop.h"
 #include "media/base/gmock_callback_support.h"
 #include "media/base/mock_filters.h"
-#include "media/base/test_helpers.h"
 #include "media/filters/audio_decoder_selector.h"
 #include "media/filters/decrypting_demuxer_stream.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -42,19 +41,6 @@
         decoder_2_(new StrictMock<MockAudioDecoder>()) {
     all_decoders_.push_back(decoder_1_);
     all_decoders_.push_back(decoder_2_);
-
-    EXPECT_CALL(*decoder_1_, Stop(_))
-      .WillRepeatedly(RunClosure<0>());
-    EXPECT_CALL(*decoder_2_, Stop(_))
-      .WillRepeatedly(RunClosure<0>());
-  }
-
-  ~AudioDecoderSelectorTest() {
-    if (selected_decoder_) {
-      selected_decoder_->Stop(NewExpectedClosure());
-    }
-
-    message_loop_.RunUntilIdle();
   }
 
   MOCK_METHOD1(OnStatistics, void(const PipelineStatistics&));
@@ -66,7 +52,6 @@
       scoped_ptr<AudioDecoder> decoder,
       scoped_ptr<DecryptingDemuxerStream> stream) {
     OnDecoderSelected(decoder.get(), stream.get());
-    selected_decoder_ = decoder.Pass();
   }
 
   void UseClearStream() {
@@ -106,9 +91,8 @@
             .WillRepeatedly(RunCallback<1>(true));
       }
     } else if (decryptor_capability == kHoldSetDecryptor) {
-      // Set and cancel DecryptorReadyCB but the callback is never fired.
-      EXPECT_CALL(*this, SetDecryptorReadyCallback(_))
-          .Times(2);
+      // Set DecryptorReadyCB but the callback is never fired.
+      EXPECT_CALL(*this, SetDecryptorReadyCallback(_));
     }
 
     DCHECK_GE(all_decoders_.size(), static_cast<size_t>(num_decoders));
@@ -148,7 +132,6 @@
   StrictMock<MockAudioDecoder>* decoder_1_;
   StrictMock<MockAudioDecoder>* decoder_2_;
   ScopedVector<AudioDecoder> all_decoders_;
-  scoped_ptr<AudioDecoder> selected_decoder_;
   base::MessageLoop message_loop_;
 
  private: