Introduce AudioDecoderConfig to migrate away from GetAVStream().

content/renderer/media/audio_renderer_impl_unittest.cc

 // Copyright (c) 2011 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 "base/message_loop.h"
 #include "base/process_util.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/test/test_timeouts.h"
 #include "base/time.h"
 #include "content/common/child_process.h"
@@ skipping 140 matching lines @@
     // Create temporary shared memory.
     CHECK(shared_mem_.CreateAnonymous(kSize));
 
     // Setup expectations for initialization.
     decoder_ = new media::MockAudioDecoder();
 
     EXPECT_CALL(*decoder_, bits_per_channel())
         .WillRepeatedly(Return(16));
     EXPECT_CALL(*decoder_, channel_layout())
         .WillRepeatedly(Return(CHANNEL_LAYOUT_MONO));
-    EXPECT_CALL(*decoder_, sample_rate())
+    EXPECT_CALL(*decoder_, samples_per_second())
         .WillRepeatedly(Return(44100));
 
     // Create and initialize the audio renderer.
     renderer_ = new TestAudioRendererImpl();
     renderer_->set_host(&host_);
     renderer_->Initialize(decoder_, media::NewExpectedCallback());
 
     // Wraps delegate calls into tasks.
     delegate_caller_ = new DelegateCaller(renderer_);
 
@@ skipping 167 matching lines @@
   base::Time time_now = base::Time();  // Null time by default.
   renderer_->set_earliest_end_time(time_now);
   renderer_->UpdateEarliestEndTime(renderer_->bytes_per_second(),
                                    base::TimeDelta::FromMilliseconds(100),
                                    time_now);
   int time_delta = (renderer_->earliest_end_time() - time_now).InMilliseconds();
   EXPECT_EQ(1100, time_delta);
   renderer_->Stop(media::NewExpectedCallback());
   WaitForIOThreadCompletion();
 }