Apply automatic range checks to content enum types across IPC.

content/common/gin_java_bridge_messages.h

 // Copyright 2014 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.
 
 // IPC messages for injected Java objects (Gin-based implementation).
 
 // Multiply-included message file, hence no include guard.
 
 #include "base/basictypes.h"
 #include "content/common/android/gin_java_bridge_errors.h"
 #include "content/common/content_export.h"
 #include "ipc/ipc_message_macros.h"
 
 #undef IPC_MESSAGE_EXPORT
 #define IPC_MESSAGE_EXPORT CONTENT_EXPORT
 #define IPC_MESSAGE_START GinJavaBridgeMsgStart
 
 // Messages for handling Java objects injected into JavaScript -----------------
 
-IPC_ENUM_TRAITS(content::GinJavaBridgeError)
+IPC_ENUM_TRAITS_MAX_VALUE(content::GinJavaBridgeError,
+                          content::kGinJavaBridgeErrorLast)
 
 // Sent from browser to renderer to add a Java object with the given name.
 // Object IDs are generated on the browser side.
 IPC_MESSAGE_ROUTED2(GinJavaBridgeMsg_AddNamedObject,
                     std::string /* name */,
                     int32 /* object_id */)
 
 // Sent from browser to renderer to remove a Java object with the given name.
 IPC_MESSAGE_ROUTED1(GinJavaBridgeMsg_RemoveNamedObject,
                     std::string /* name */)
@@ skipping 33 matching lines @@
 //  1. (Main usage) To inform that the JS wrapper of the object has
 //     been completely dereferenced and garbage-collected.
 //
 //  2. To notify the browser that wrapper creation has failed.  The browser side
 //     assumes optimistically that every time an object is returned from a
 //     method, the corresponding wrapper object will be successfully created on
 //     the renderer side. Sending of this message informs the browser whether
 //     this expectation has failed.
 IPC_MESSAGE_ROUTED1(GinJavaBridgeHostMsg_ObjectWrapperDeleted,
                     int32 /* object_id */)