Adds Channel-associated interface support on ChannelProxy's thread

ipc/ipc_channel.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 IPC_IPC_CHANNEL_H_
 #define IPC_IPC_CHANNEL_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/files/scoped_file.h"
+#include "base/memory/ref_counted.h"
 #include "base/process/process.h"
+#include "base/single_thread_task_runner.h"
 #include "build/build_config.h"
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_endpoint.h"
 #include "ipc/ipc_message.h"
 #include "mojo/public/cpp/bindings/associated_group.h"
 #include "mojo/public/cpp/bindings/associated_interface_ptr.h"
 #include "mojo/public/cpp/bindings/associated_interface_request.h"
 #include "mojo/public/cpp/bindings/scoped_interface_endpoint_handle.h"
 
 #if defined(OS_POSIX)
@@ skipping 86 matching lines @@
     // Adds an interface factory to this channel for interface |name|.
     virtual void AddGenericAssociatedInterface(
         const std::string& name,
         const GenericAssociatedInterfaceFactory& factory) = 0;
 
     // Requests an associated interface from the remote endpoint.
     virtual void GetGenericRemoteAssociatedInterface(
         const std::string& name,
         mojo::ScopedInterfaceEndpointHandle handle) = 0;
 
+    // Sets the TaskRunner on which to support proxied dispatch for associated
+    // interfaces.
+    virtual void SetProxyTaskRunner(
+        scoped_refptr<base::SingleThreadTaskRunner> task_runner) = 0;
+
     // Template helper to add an interface factory to this channel.
     template <typename Interface>
     using AssociatedInterfaceFactory =
         base::Callback<void(mojo::AssociatedInterfaceRequest<Interface>)>;
     template <typename Interface>
     void AddAssociatedInterface(
         const AssociatedInterfaceFactory<Interface>& factory) {
       AddGenericAssociatedInterface(
           Interface::Name_,
           base::Bind(&BindAssociatedInterfaceRequest<Interface>, factory));
@@ skipping 216 matching lines @@
 
 #if defined(OS_POSIX)
 // SocketPair() creates a pair of socket FDs suitable for using with
 // IPC::Channel.
 IPC_EXPORT bool SocketPair(int* fd1, int* fd2);
 #endif
 
 }  // namespace IPC
 
 #endif  // IPC_IPC_CHANNEL_H_