Update FFmpegAudioDecoder to support multi-frame packets.

media/filters/ffmpeg_audio_decoder_unittest.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 <deque>
 
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "base/stringprintf.h"
 #include "media/base/decoder_buffer.h"
@@ skipping 128 matching lines @@
   Initialize();
 
   // Vorbis requires N+1 packets to produce audio data for N packets.
   //
   // This will should result in the demuxer receiving three reads for two
   // requests to produce audio samples.
   EXPECT_CALL(*demuxer_, Read(_))
       .Times(5)
       .WillRepeatedly(InvokeReadPacket(this));
   EXPECT_CALL(statistics_cb_, OnStatistics(_))
-      .Times(5);
+      .Times(4);

[DaleCurtis, 2012/08/28 20:19:17]

Patch removes the statistics callback for end of stream buffers with size == 0.

 
   Read();
   Read();
   Read();
 
   ASSERT_EQ(3u, decoded_audio_.size());
   ExpectDecodedAudio(0, 0, 2902);
   ExpectDecodedAudio(1, 2902, 13061);
   ExpectDecodedAudio(2, 15963, 23220);
 
@@ skipping 11 matching lines @@
 
   EXPECT_CALL(*demuxer_, Read(_))
       .WillOnce(InvokeReadPacket(this));
   Read();
 
   EXPECT_EQ(decoded_audio_.size(), 1u);
   EXPECT_TRUE(decoded_audio_[0].get() ==  NULL);
 }
 
 }  // namespace media