Fix building the IPC fuzzer in light of the new Protobuf<->IPC bridge.

tools/ipc_fuzzer/message_tools/message_tools.gyp

 # Copyright 2015 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 13 matching lines @@
         'USE_CUPS',
       ],
     },
     {
       'target_name': 'ipc_message_list',
       'type': 'executable',
       'defines': [
         'FULL_SAFE_BROWSING',
       ],
       'dependencies': [
+        '../../../chrome/chrome.gyp:safe_browsing_proto',
         '../message_lib/message_lib.gyp:ipc_message_lib',
       ],
       'sources': [
         'message_list.cc',
       ]
     },
   ],
 }