Add AudioStreamRegistry. Move stream counting logic

content/browser/renderer_host/render_process_host_impl.h

 // 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.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 #include <queue>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/observer_list.h"
 #include "base/process/process.h"
 #include "base/single_thread_task_runner.h"
 #include "base/synchronization/waitable_event.h"
 #include "build/build_config.h"
 #include "content/browser/child_process_launcher.h"
 #include "content/browser/dom_storage/session_storage_namespace_impl.h"
 #include "content/browser/renderer_host/offscreen_canvas_compositor_frame_sink_provider_impl.h"
+#include "content/browser/renderer_host/media/audio_stream_registry_impl.h"
 #include "content/browser/webrtc/webrtc_eventlog_host.h"
 #include "content/common/associated_interfaces.mojom.h"
 #include "content/common/content_export.h"
 #include "content/common/indexed_db/indexed_db.mojom.h"
 #include "content/common/renderer.mojom.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/common/service_manager_connection.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "ipc/ipc_platform_file.h"
 #include "media/media_features.h"
@@ skipping 501 matching lines @@
   bool gpu_observer_registered_;
 
   // Set if a call to Cleanup is required once the RenderProcessHostImpl is no
   // longer within the RenderProcessHostObserver::RenderProcessExited callbacks.
   bool delayed_cleanup_needed_;
 
   // Indicates whether RenderProcessHostImpl is currently iterating and calling
   // through RenderProcessHostObserver::RenderProcessExited.
   bool within_process_died_observer_;
 
+  const AudioStreamRegistryImpl::UniquePtr audio_stream_registry_;
+
   scoped_refptr<AudioRendererHost> audio_renderer_host_;
 
   scoped_refptr<AudioInputRendererHost> audio_input_renderer_host_;
 
 #if BUILDFLAG(ENABLE_WEBRTC)
   scoped_refptr<P2PSocketDispatcherHost> p2p_socket_dispatcher_host_;
 
   // Must be accessed on UI thread.
   std::vector<int> aec_dump_consumers_;
 
@@ skipping 47 matching lines @@
       instance_weak_factory_;
 
   base::WeakPtrFactory<RenderProcessHostImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderProcessHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_PROCESS_HOST_IMPL_H_