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

ppapi/cpp/private/flash_message_loop.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 "ppapi/cpp/private/flash_message_loop.h"
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/private/ppb_flash_message_loop.h"
-#include "ppapi/cpp/instance.h"
+#include "ppapi/cpp/instance_handle.h"
 #include "ppapi/cpp/module_impl.h"
 
 namespace pp {
 
 namespace {
 
 template <> const char* interface_name<PPB_Flash_MessageLoop>() {
   return PPB_FLASH_MESSAGELOOP_INTERFACE;
 }
 
 }  // namespace
 
 namespace flash {
 
-MessageLoop::MessageLoop(Instance* instance) {
+MessageLoop::MessageLoop(const InstanceHandle& instance) {
   if (has_interface<PPB_Flash_MessageLoop>()) {
     PassRefFromConstructor(get_interface<PPB_Flash_MessageLoop>()->Create(
-        instance->pp_instance()));
+        instance.pp_instance()));
   }
 }
 
 MessageLoop::~MessageLoop() {
 }
 
 // static
 bool MessageLoop::IsAvailable() {
   return has_interface<PPB_Flash_MessageLoop>();
 }
 
 int32_t MessageLoop::Run() {
   if (!has_interface<PPB_Flash_MessageLoop>())
     return PP_ERROR_NOINTERFACE;
   return get_interface<PPB_Flash_MessageLoop>()->Run(pp_resource());
 }
 
 void MessageLoop::Quit() {
   if (has_interface<PPB_Flash_MessageLoop>())
     get_interface<PPB_Flash_MessageLoop>()->Quit(pp_resource());
 }
 
 }  // namespace flash
 }  // namespace pp