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>
 
@@ skipping 34 matching lines @@
 
 namespace base {
 class CommandLine;
 class MessageLoop;
 class SharedPersistentMemoryAllocator;
 }
 
 namespace content {
 class AudioInputRendererHost;
 class AudioRendererHost;
+class AudioStreamRegistryImpl;
 class ChildConnection;
 class InProcessChildThreadParams;
 class MessagePortMessageFilter;
 class NotificationMessageFilter;
 #if BUILDFLAG(ENABLE_WEBRTC)
 class P2PSocketDispatcherHost;
 #endif
 class PermissionServiceContext;
 class PeerConnectionTrackerHost;
 class RenderFrameMessageFilter;
@@ skipping 457 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_;
 
+  std::unique_ptr<AudioStreamRegistryImpl, BrowserThread::DeleteOnIOThread>
+      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 45 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_