Privitize WaitTillDataReady() and DataReady().

media/audio/pulse/pulse_unified.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 "media/audio/pulse/pulse_unified.h"
 
 #include "base/message_loop.h"
 #include "base/time.h"
 #include "media/audio/audio_manager_base.h"
 #include "media/audio/audio_parameters.h"
@@ skipping 137 matching lines @@
   CHECK_EQ(requested_bytes, static_cast<size_t>(params_.GetBytesPerBuffer()));
 
   void* buffer = NULL;
   int frames_filled = 0;
   if (source_callback_) {
     CHECK_GE(pa_stream_begin_write(
         output_stream_, &buffer, &requested_bytes), 0);
     uint32 hardware_delay = pulse::GetHardwareLatencyInBytes(
         output_stream_, params_.sample_rate(),
         params_.GetBytesPerFrame());
-    source_callback_->WaitTillDataReady();
     fifo_->Read(input_data_buffer_.get(), requested_bytes);
     input_bus_->FromInterleaved(
         input_data_buffer_.get(), params_.frames_per_buffer(), 2);
 
     frames_filled = source_callback_->OnMoreIOData(
         input_bus_.get(),
         output_bus_.get(),
         AudioBuffersState(0, hardware_delay));
   }
 
@@ skipping 113 matching lines @@
   volume_ = static_cast<float>(volume);
 }
 
 void PulseAudioUnifiedStream::GetVolume(double* volume) {
   DCHECK(manager_->GetMessageLoop()->BelongsToCurrentThread());
 
   *volume = volume_;
 }
 
 }  // namespace media