Getting rid of AudioHardwareConfig and its synchronous IPC.

content/renderer/render_thread_impl.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 "content/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <utility>
@@ skipping 115 matching lines @@
 #include "content/renderer/service_worker/service_worker_context_message_filter.h"
 #include "content/renderer/shared_worker/embedded_shared_worker_stub.h"
 #include "gin/public/debug.h"
 #include "gpu/GLES2/gl2extchromium.h"
 #include "gpu/command_buffer/client/shared_memory_limits.h"
 #include "gpu/ipc/client/command_buffer_proxy_impl.h"
 #include "gpu/ipc/client/gpu_channel_host.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_channel_mojo.h"
 #include "ipc/ipc_platform_file.h"
-#include "media/base/audio_hardware_config.h"
 #include "media/base/media.h"
 #include "media/renderers/gpu_video_accelerator_factories.h"
 #include "mojo/common/common_type_converters.h"
 #include "mojo/public/cpp/bindings/strong_binding.h"
 #include "net/base/net_errors.h"
 #include "net/base/port_util.h"
 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 #include "net/base/url_util.h"
 #include "skia/ext/event_tracer_impl.h"
 #include "skia/ext/skia_memory_dump_provider.h"
@@ skipping 1376 matching lines @@
 #endif
 
 AudioRendererMixerManager* RenderThreadImpl::GetAudioRendererMixerManager() {
   if (!audio_renderer_mixer_manager_) {
     audio_renderer_mixer_manager_ = AudioRendererMixerManager::Create();
   }
 
   return audio_renderer_mixer_manager_.get();
 }
 
-media::AudioHardwareConfig* RenderThreadImpl::GetAudioHardwareConfig() {
-  if (!audio_hardware_config_) {
-    media::AudioParameters input_params;
-    media::AudioParameters output_params;
-    Send(new ViewHostMsg_GetAudioHardwareConfig(
-        &input_params, &output_params));
-
-    audio_hardware_config_.reset(new media::AudioHardwareConfig(
-        input_params, output_params));
-  }
-
-  return audio_hardware_config_.get();
-}
-
 base::WaitableEvent* RenderThreadImpl::GetShutdownEvent() {
   return ChildProcess::current()->GetShutDownEvent();
 }
 
 #if defined(OS_WIN)
 void RenderThreadImpl::PreCacheFontCharacters(const LOGFONT& log_font,
                                               const base::string16& str) {
   Send(new RenderProcessHostMsg_PreCacheFontCharacters(log_font, str));
 }
 
@@ skipping 666 matching lines @@
       v8_memory_pressure_level == v8::MemoryPressureLevel::kCritical)
     v8_memory_pressure_level = v8::MemoryPressureLevel::kModerate;
 
   blink::mainThreadIsolate()->MemoryPressureNotification(
       v8_memory_pressure_level);
   blink::MemoryPressureNotificationToWorkerThreadIsolates(
       v8_memory_pressure_level);
 }
 
 }  // namespace content