Remove untrusted scripting support.

ppapi/thunk/ppb_instance_thunk.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/thunk/thunk.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/ppb_instance_api.h"
 #include "ppapi/thunk/resource_creation_api.h"
 
 namespace ppapi {
@@ skipping 36 matching lines @@
   if (enter.failed())
     return PP_MakeUndefined();
   return enter.functions()->ExecuteScript(instance, script, exception);
 }
 
 const PPB_Instance_1_0 g_ppb_instance_1_0_thunk = {
   &BindGraphics,
   &IsFullFrame
 };
 
-const PPB_Instance_0_4 g_ppb_instance_0_4_thunk = {
-  &GetWindowObject,
-  &GetOwnerElementObject,
-  &BindGraphics,
-  &IsFullFrame,
-  &ExecuteScript
-};
-
 const PPB_Instance_Private g_ppb_instance_private_thunk = {
   &GetWindowObject,
   &GetOwnerElementObject,
   &ExecuteScript
 };
 
 }  // namespace
 
-const PPB_Instance_0_4* GetPPB_Instance_0_4_Thunk() {
-  return &g_ppb_instance_0_4_thunk;
-}
 const PPB_Instance_1_0* GetPPB_Instance_1_0_Thunk() {
   return &g_ppb_instance_1_0_thunk;
 }
 const PPB_Instance_Private* GetPPB_Instance_Private_Thunk() {
   return &g_ppb_instance_private_thunk;
 }
 
 }  // namespace thunk
 }  // namespace ppapi