Stop asynchronously deleting the network manager in P2PPortAllocator.

content/renderer/p2p/port_allocator.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_RENDERER_P2P_PORT_ALLOCATOR_H_
 #define CONTENT_RENDERER_P2P_PORT_ALLOCATOR_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 20 matching lines @@
     // to generate a single local candidate. TODO(guoweis): Rename this to
     // |request_multiple_routes|.
     bool enable_multiple_routes = true;
 
     // Enable exposing the default local address when set to true. This is
     // only in effect when the |enable_multiple_routes| is false or the
     // permission check of mic/camera is denied.
     bool enable_default_local_candidate = true;
   };
 
-  P2PPortAllocator(
-      const scoped_refptr<P2PSocketDispatcher>& socket_dispatcher,
-      std::unique_ptr<rtc::NetworkManager> network_manager,
-      rtc::PacketSocketFactory* socket_factory,
-      const Config& config,
-      const GURL& origin,
-      const scoped_refptr<base::SingleThreadTaskRunner> task_runner);
+  P2PPortAllocator(const scoped_refptr<P2PSocketDispatcher>& socket_dispatcher,
+                   std::unique_ptr<rtc::NetworkManager> network_manager,
+                   rtc::PacketSocketFactory* socket_factory,
+                   const Config& config,
+                   const GURL& origin);
   ~P2PPortAllocator() override;
 
  private:
   std::unique_ptr<rtc::NetworkManager> network_manager_;
   scoped_refptr<P2PSocketDispatcher> socket_dispatcher_;
   Config config_;
   GURL origin_;
 
-  // This is the thread |network_manager_| is associated with and must be used
-  // to delete |network_manager_|.
-  const scoped_refptr<base::SingleThreadTaskRunner>
-      network_manager_task_runner_;
-
   DISALLOW_COPY_AND_ASSIGN(P2PPortAllocator);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_P2P_PORT_ALLOCATOR_H_