Make the PPP wrappers take an Instance*.

ppapi/cpp/mouse_lock.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/mouse_lock.h"
 
 #include "ppapi/c/ppb_mouse_lock.h"
 #include "ppapi/c/ppp_mouse_lock.h"
 #include "ppapi/cpp/completion_callback.h"
 #include "ppapi/cpp/instance.h"
@@ skipping 18 matching lines @@
 const PPP_MouseLock ppp_mouse_lock = {
   &MouseLockLost
 };
 
 template <> const char* interface_name<PPB_MouseLock>() {
   return PPB_MOUSELOCK_INTERFACE;
 }
 
 }  // namespace
 
-MouseLock::MouseLock(const InstanceHandle& instance)
+MouseLock::MouseLock(Instance* instance)
     : associated_instance_(instance) {
   Module::Get()->AddPluginInterface(kPPPMouseLockInterface, &ppp_mouse_lock);
-  Instance::AddPerInstanceObject(instance, kPPPMouseLockInterface, this);
+  instance->AddPerInstanceObject(kPPPMouseLockInterface, this);
 }
 
 MouseLock::~MouseLock() {
   Instance::RemovePerInstanceObject(associated_instance_,
                                     kPPPMouseLockInterface, this);
 }
 
 int32_t MouseLock::LockMouse(const CompletionCallback& cc) {
   if (!has_interface<PPB_MouseLock>())
     return cc.MayForce(PP_ERROR_NOINTERFACE);
   return get_interface<PPB_MouseLock>()->LockMouse(
       associated_instance_.pp_instance(), cc.pp_completion_callback());
 }
 
 void MouseLock::UnlockMouse() {
   if (has_interface<PPB_MouseLock>()) {
     get_interface<PPB_MouseLock>()->UnlockMouse(
         associated_instance_.pp_instance());
   }
 }
 
 }  // namespace pp