Uncomment tracking macro in IPC_MESSAGE_HANDLER_GENERIC

ipc/ipc_message_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.
 
 // Defining IPC Messages
 //
 // Your IPC messages will be defined by macros inside of an XXX_messages.h
 // header file.  Most of the time, the system can automatically generate all
 // of messaging mechanism from these definitions, but sometimes some manual
 // coding is required.  In these cases, you will also have an XXX_messages.cc
@@ skipping 370 matching lines @@
     if (!msg_class::DispatchWithParamDelayReply(&ipc_message__, obj, param__,  \
                                                 &member_func))                 \
       ipc_message__.set_dispatch_error();                                      \
   }                                                                            \
   break;
 
 #define IPC_MESSAGE_HANDLER_WITH_PARAM_DELAY_REPLY(msg_class, member_func)     \
     IPC_MESSAGE_FORWARD_WITH_PARAM_DELAY_REPLY(                                \
         msg_class, this, _IpcMessageHandlerClass::member_func)
 
-// TODO(jar): fix chrome frame to always supply |code| argument.
 #define IPC_MESSAGE_HANDLER_GENERIC(msg_class, code)                           \
     case msg_class::ID: {                                                      \
-        /* TRACK_RUN_IN_THIS_SCOPED_REGION(code);  TODO(jar) */                \
+        TRACK_RUN_IN_THIS_SCOPED_REGION(code);                                 \
         code;                                                                  \
       }                                                                        \
       break;
 
 #define IPC_REPLY_HANDLER(func)                                                \
     case IPC_REPLY_ID: {                                                       \
         TRACK_RUN_IN_THIS_SCOPED_REGION(func);                                 \
         func(ipc_message__);                                                   \
       }                                                                        \
       break;
@@ skipping 154 matching lines @@
   IPC_SYNC_MESSAGE_ROUTED(msg, (a, b, c, d, e), (f, g, h))
 #define IPC_SYNC_MESSAGE_ROUTED5_4(msg, a, b, c, d, e, f, g, h, i) \
   IPC_SYNC_MESSAGE_ROUTED(msg, (a, b, c, d, e), (f, g, h, i))
 
 #endif  // IPC_IPC_MESSAGE_MACROS_H_
 
 // Clean up IPC_MESSAGE_START in this unguarded section so that the
 // XXX_messages.h files need not do so themselves.  This makes the
 // XXX_messages.h files easier to write.
 #undef IPC_MESSAGE_START