Change PRESUBMIT warning text for obsolete predeclaration

PRESUBMIT.py

 # 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.
 
 """Top-level presubmit script for Chromium.
 
 See http://dev.chromium.org/developers/how-tos/depottools/presubmit-scripts
 for more details about the presubmit API built into depot_tools.
 """
 
@@ skipping 1714 matching lines @@
 
     if not useless_fwd_decls:
       continue
 
     for line in f.GenerateScmDiff().splitlines():
       if (line.startswith('-') and not line.startswith('--') or
           line.startswith('+') and not line.startswith('++')):
         for decl in useless_fwd_decls:
           if input_api.re.search(r'\b%s\b' % decl, line[1:]):
             results.append(output_api.PresubmitPromptWarning(
-              '%s: %s forward declaration is becoming useless' %
+              '%s: %s forward declaration is no longer needed' %
               (f.LocalPath(), decl)))
             useless_fwd_decls.remove(decl)
 
   return results
 
 
 def _CheckAndroidToastUsage(input_api, output_api):
   """Checks that code uses org.chromium.ui.widget.Toast instead of
      android.widget.Toast (Chromium Toast doesn't force hardware
      acceleration on low-end devices, saving memory).
@@ skipping 745 matching lines @@
       output_api,
       json_url='http://chromium-status.appspot.com/current?format=json'))
 
   results.extend(
       input_api.canned_checks.CheckPatchFormatted(input_api, output_api))
   results.extend(input_api.canned_checks.CheckChangeHasBugField(
       input_api, output_api))
   results.extend(input_api.canned_checks.CheckChangeHasDescription(
       input_api, output_api))
   return results