Convert resources to take an instance key instead of an Instance*.

ppapi/cpp/private/tcp_socket_private.cc

 // Copyright (c) 2011 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 "ppapi/cpp/private/tcp_socket_private.h"
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/cpp/completion_callback.h"
-#include "ppapi/cpp/instance.h"
+#include "ppapi/cpp/instance_handle.h"
 #include "ppapi/cpp/module.h"
 #include "ppapi/cpp/module_impl.h"
 
 namespace pp {
 
 namespace {
 
 template <> const char* interface_name<PPB_TCPSocket_Private>() {
   return PPB_TCPSOCKET_PRIVATE_INTERFACE;
 }
 
 }  // namespace
 
-TCPSocketPrivate::TCPSocketPrivate(Instance* instance) {
-  if (has_interface<PPB_TCPSocket_Private>() && instance) {
+TCPSocketPrivate::TCPSocketPrivate(const InstanceHandle& instance) {
+  if (has_interface<PPB_TCPSocket_Private>()) {
     PassRefFromConstructor(get_interface<PPB_TCPSocket_Private>()->Create(
-        instance->pp_instance()));
+        instance.pp_instance()));
   }
 }
 
 // static
 bool TCPSocketPrivate::IsAvailable() {
   return has_interface<PPB_TCPSocket_Private>();
 }
 
 int32_t TCPSocketPrivate::Connect(const char* host,
                                   uint16_t port,
@@ skipping 58 matching lines @@
       pp_resource(), buffer, bytes_to_write, callback.pp_completion_callback());
 }
 
 void TCPSocketPrivate::Disconnect() {
   if (!has_interface<PPB_TCPSocket_Private>())
     return;
   return get_interface<PPB_TCPSocket_Private>()->Disconnect(pp_resource());
 }
 
 }  // namespace pp