[media] Apply automatic range checks to content enum types across IPC

content/common/media/media_player_messages_android.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.
 
 // IPC messages for android media player.
 // Multiply-included message file, hence no include guard.
 
 #include "base/basictypes.h"
 #include "base/time/time.h"
 #include "content/common/content_export.h"
@@ skipping 42 matching lines @@
   IPC_STRUCT_TRAITS_MEMBER(key_id)
   IPC_STRUCT_TRAITS_MEMBER(iv)
   IPC_STRUCT_TRAITS_MEMBER(subsamples)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(media::SubsampleEntry)
   IPC_STRUCT_TRAITS_MEMBER(clear_bytes)
   IPC_STRUCT_TRAITS_MEMBER(cypher_bytes)
 IPC_STRUCT_TRAITS_END()
 
-IPC_ENUM_TRAITS(MediaPlayerHostMsg_Initialize_Type)
+IPC_ENUM_TRAITS_MAX_VALUE(MediaPlayerHostMsg_Initialize_Type,
+                          MEDIA_PLAYER_TYPE_LAST)
 
 // Parameters to describe a media player
 IPC_STRUCT_BEGIN(MediaPlayerHostMsg_Initialize_Params)
   IPC_STRUCT_MEMBER(MediaPlayerHostMsg_Initialize_Type, type)
   IPC_STRUCT_MEMBER(base::SharedMemoryHandle, metafile_data_handle)
   IPC_STRUCT_MEMBER(int, player_id)
   IPC_STRUCT_MEMBER(int, demuxer_client_id)
   IPC_STRUCT_MEMBER(GURL, url)
   IPC_STRUCT_MEMBER(GURL, first_party_for_cookies)
   IPC_STRUCT_MEMBER(GURL, frame_url)
@@ skipping 211 matching lines @@
 
 #if defined(VIDEO_HOLE)
 // Notify the player about the external surface, requesting it if necessary.
 // |is_request| true if the player is requesting the external surface.
 // |rect| the boundary rectangle of the video element.
 IPC_MESSAGE_ROUTED3(MediaPlayerHostMsg_NotifyExternalSurface,
                     int /* player_id */,
                     bool /* is_request */,
                     gfx::RectF /* rect */)
 #endif  // defined(VIDEO_HOLE)