Add SetClient method implementation to InterfaceImpl.

content/browser/mojo/mojo_application_host.cc

 // Copyright 2014 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/browser/mojo/mojo_application_host.h"
 
 #include "content/common/mojo/mojo_messages.h"
 #include "content/public/browser/browser_thread.h"
 #include "ipc/ipc_sender.h"
 #include "mojo/embedder/platform_channel_pair.h"
@@ skipping 41 matching lines @@
   DCHECK(!did_activate_);
   DCHECK(client_handle_.is_valid());
 
   base::PlatformFile client_file =
       PlatformFileFromScopedPlatformHandle(client_handle_.Pass());
   did_activate_ = sender->Send(new MojoMsg_Activate(
       IPC::GetFileHandleForProcess(client_file, process_handle, true)));
   return did_activate_;
 }
 
-void MojoApplicationHost::ShellImpl::SetClient(mojo::ShellClient* client) {
-  client_ = client;
-}
-
 void MojoApplicationHost::ShellImpl::Connect(
     const mojo::String& url,
     mojo::ScopedMessagePipeHandle handle) {
   // TODO(darin): Provide something meaningful here.
 }
 
 }  // namespace content