media::SilentSinkSuspender should simulate |delay| and |delay_timestamp|

media/base/audio_hash_unittest.cc

 // Copyright 2013 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 <memory>
 
 #include "base/logging.h"
 #include "base/macros.h"
 #include "media/base/audio_bus.h"
 #include "media/base/audio_hash.h"
 #include "media/base/fake_audio_render_callback.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media {
 
 static const int kChannelCount = 2;
 static const int kFrameCount = 1024;
+static const int kSampleRate = 48000;
 
 class AudioHashTest : public testing::Test {
  public:
   AudioHashTest()
       : bus_one_(AudioBus::Create(kChannelCount, kFrameCount)),
         bus_two_(AudioBus::Create(kChannelCount, kFrameCount)),
-        fake_callback_(0.01) {
-
+        fake_callback_(0.01, kSampleRate) {
     // Fill each channel in each bus with unique data.
     GenerateUniqueChannels(bus_one_.get());
     GenerateUniqueChannels(bus_two_.get());
   }
 
   void GenerateUniqueChannels(AudioBus* audio_bus) {
     // Use an AudioBus wrapper to avoid an extra memcpy when filling channels.
     std::unique_ptr<AudioBus> wrapped_bus = AudioBus::CreateWrapper(1);
     wrapped_bus->set_frames(audio_bus->frames());
 
@@ skipping 126 matching lines @@
   // Twiddle the values too much...
   for (int i = 0; i < bus_one_->frames(); ++i)
     channel[i] += 0.0001f;
 
   AudioHash hash_three;
   hash_three.Update(bus_one_.get(), bus_one_->frames());
   EXPECT_NE(hash_one.ToString(), hash_three.ToString());
 }
 
 }  // namespace media