Add a parameter to CreateAudioStream to choose between standard and low-latency mode.

chrome/browser/renderer_host/audio_renderer_host_unittest.cc

 // Copyright (c) 2010 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/scoped_ptr.h"
 #include "chrome/browser/chrome_thread.h"
 #include "chrome/browser/renderer_host/audio_renderer_host.h"
 #include "chrome/common/render_messages.h"
@@ skipping 143 matching lines @@
             host_,
             kProcessId,
             kRouteId,
             current_stream_id_,
             base::GetCurrentProcessHandle(),
             format,
             2,
             AudioManager::kAudioCDSampleRate,
             16,
             kPacketSize,
-            kBufferCapacity);
+            kBufferCapacity,
+            false);
     EXPECT_TRUE(source);
     EXPECT_EQ(kProcessId, source->process_id());
     EXPECT_EQ(kRouteId, source->route_id());
     EXPECT_EQ(current_stream_id_, source->stream_id());
     return source;
   }
 
   AudioRendererHost::IPCAudioSource* CreateRealStream() {
     return CreateAudioStream(AudioManager::AUDIO_PCM_LINEAR);
   }
@@ skipping 42 matching lines @@
   source->NotifyPacketReady(kPacketSize);
   source->NotifyPacketReady(kPacketSize);
   source->NotifyPacketReady(kStep);
   source->NotifyPacketReady(kStep);
   source->NotifyPacketReady(kStep);
   source->NotifyPacketReady(kStep);
   source->Play();
   EXPECT_EQ(ViewMsg_AudioStreamState_Params::kPlaying, state.state);
   source->Close();
 }