Add validation to ui::PageTransition.

content/public/common/common_param_traits_macros.h

 // 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.
 
 // Singly or Multiply-included shared traits file depending on circumstances.
 // This allows the use of IPC serialization macros in more than one IPC message
 // file.
 #ifndef CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_MACROS_H_
 #define CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_MACROS_H_
 
@@ skipping 10 matching lines @@
 #include "third_party/WebKit/public/platform/WebRect.h"
 #include "third_party/WebKit/public/platform/WebReferrerPolicy.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 #include "third_party/WebKit/public/web/WebWindowFeatures.h"
 #include "ui/base/page_transition_types.h"
 #include "ui/base/window_open_disposition.h"
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
 
-IPC_ENUM_TRAITS(ui::PageTransition)  // Bitmask.
+IPC_ENUM_TRAITS_VALIDATE(ui::PageTransition,
+                         ((value &
+                           ui::PageTransition::PAGE_TRANSITION_CORE_MASK) <=
+                          ui::PageTransition::PAGE_TRANSITION_LAST_CORE))
 IPC_ENUM_TRAITS_MAX_VALUE(net::NetworkChangeNotifier::ConnectionType,
                           net::NetworkChangeNotifier::CONNECTION_LAST)
 IPC_ENUM_TRAITS_MAX_VALUE(content::ConsoleMessageLevel,
                           content::CONSOLE_MESSAGE_LEVEL_LAST)
 IPC_ENUM_TRAITS_MAX_VALUE(content::SecurityStyle,
                           content::SECURITY_STYLE_LAST)
 IPC_ENUM_TRAITS_MAX_VALUE(blink::WebReferrerPolicy,
                           blink::WebReferrerPolicyLast)
 IPC_ENUM_TRAITS_MAX_VALUE(content::EditingBehavior,
                           content::EDITING_BEHAVIOR_LAST)
@@ skipping 195 matching lines @@
   IPC_STRUCT_TRAITS_MEMBER(statusBarVisible)
   IPC_STRUCT_TRAITS_MEMBER(toolBarVisible)
   IPC_STRUCT_TRAITS_MEMBER(locationBarVisible)
   IPC_STRUCT_TRAITS_MEMBER(scrollbarsVisible)
   IPC_STRUCT_TRAITS_MEMBER(resizable)
   IPC_STRUCT_TRAITS_MEMBER(fullscreen)
   IPC_STRUCT_TRAITS_MEMBER(dialog)
 IPC_STRUCT_TRAITS_END()
 
 #endif  // CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_MACROS_H_