Rename USE_NSS to USE_NSS_CERTS.

build/common.gypi

 # 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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 2998 matching lines @@
       ['>(nacl_untrusted_build)==1', {
         'defines': [
           'USE_OPENSSL=1',
           'USE_OPENSSL_CERTS=1',
         ],
       }],
       ['<(use_glib)==1 and >(nacl_untrusted_build)==0', {
         'defines': ['USE_GLIB=1'],
       }],
       ['<(use_nss_certs)==1 and >(nacl_untrusted_build)==0', {
-        # TODO(davidben): Rename this to USE_NSS_CERTS. https://crbug.com/462040
-        'defines': ['USE_NSS=1'],
+        'defines': [
+          'USE_NSS_CERTS=1',
+          # TODO(davidben): USE_NSS is a deprecated alias for USE_NSS_CERTS and
+          # will be removed. See https://crbug.com/462040.
+          'USE_NSS=1',
+        ],
       }],
       ['<(chromeos)==1 and >(nacl_untrusted_build)==0', {
         'defines': ['OS_CHROMEOS=1'],
       }],
       ['enable_wexit_time_destructors==1 and OS!="win"', {
         # TODO: Enable on Windows too, http://crbug.com/404525
         'variables': { 'clang_warning_flags': ['-Wexit-time-destructors']},
       }],
       ['chromium_code==0', {
         'conditions': [
@@ skipping 3083 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }