Increase WebRTC socket send buffer to 256k.

content/renderer/p2p/ipc_socket_factory.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/p2p/ipc_socket_factory.h"
 
 #include <algorithm>
 #include <deque>
 
 #include "base/compiler_specific.h"
@@ skipping 43 matching lines @@
     case rtc::Socket::OPT_RTP_SENDTIME_EXTN_ID:
       return false;  // Not supported by the chrome sockets.
     default:
       NOTREACHED();
       return false;
   }
   return true;
 }
 
 // TODO(miu): This needs tuning.  http://crbug.com/237960
-const size_t kMaximumInFlightBytes = 64 * 1024;  // 64 KB
+// http://crbug.com/427555
+const size_t kMaximumInFlightBytes = 256 * 1024;  // 256 KB
 
 // IpcPacketSocket implements rtc::AsyncPacketSocket interface
 // using P2PSocketClient that works over IPC-channel. It must be used
 // on the thread it was created.
 class IpcPacketSocket : public rtc::AsyncPacketSocket,
                         public P2PSocketClientDelegate {
  public:
   IpcPacketSocket();
   ~IpcPacketSocket() override;
 
@@ skipping 595 matching lines @@
 }
 
 rtc::AsyncResolverInterface*
 IpcPacketSocketFactory::CreateAsyncResolver() {
   scoped_ptr<AsyncAddressResolverImpl> resolver(
     new AsyncAddressResolverImpl(socket_dispatcher_));
   return resolver.release();
 }
 
 }  // namespace content