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

ppapi/cpp/private/flash_net_connector.h

 // 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.
 
 #ifndef PPAPI_CPP_PRIVATE_FLASH_NET_CONNECTOR_H_
 #define PPAPI_CPP_PRIVATE_FLASH_NET_CONNECTOR_H_
 
 #include "ppapi/c/private/ppb_flash_net_connector.h"
 #include "ppapi/cpp/resource.h"
 
 namespace pp {
 
 class CompletionCallback;
-class Instance;
+class InstanceHandle;
 
 namespace flash {
 
 class NetConnector : public Resource {
  public:
-  explicit NetConnector(const Instance& instance);
+  explicit NetConnector(const InstanceHandle& instance);
 
   int32_t ConnectTcp(const char* host,
                      uint16_t port,
                      PP_FileHandle* socket_out,
                      PP_NetAddress_Private* local_addr_out,
                      PP_NetAddress_Private* remote_addr_out,
                      const CompletionCallback& cc);
   int32_t ConnectTcpAddress(const PP_NetAddress_Private* addr,
                             PP_FileHandle* socket_out,
                             PP_NetAddress_Private* local_addr_out,
                             PP_NetAddress_Private* remote_addr_out,
                             const CompletionCallback& cc);
 };
 
 }  // namespace flash
 }  // namespace pp
 
 #endif  // PPAPI_CPP_PRIVATE_FLASH_NET_CONNECTOR_H_